[706c95] | 1 | /**************************************** |
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| 2 | * Computer Algebra System SINGULAR * |
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| 3 | ****************************************/ |
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| 4 | /* |
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| 5 | * ABSTRACT: help system |
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[6e3652] | 6 | * versin $Id: fehelp.cc,v 1.38 2003-05-31 14:13:06 Singular Exp $ |
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[706c95] | 7 | */ |
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| 8 | |
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| 9 | #include <string.h> |
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| 10 | #include <unistd.h> |
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| 11 | #include <stdio.h> |
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| 12 | #include <stddef.h> |
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| 13 | #include <stdlib.h> |
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| 14 | #include <time.h> |
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| 15 | |
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| 16 | #include "mod2.h" |
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[b447d5] | 17 | #include <mylimits.h> |
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[706c95] | 18 | #include "tok.h" |
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[512a2b] | 19 | #include "omalloc.h" |
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[706c95] | 20 | #include "febase.h" |
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| 21 | #include "ipid.h" |
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| 22 | #include "ipshell.h" |
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[9c35ef] | 23 | #include "libparse.h" |
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[c06a32] | 24 | #include "feOpt.h" |
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[ec7aac] | 25 | #include "dError.h" |
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[ef0124] | 26 | |
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[9c35ef] | 27 | /***************************************************************** |
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| 28 | * |
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| 29 | * Declarations: Data structures |
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| 30 | * |
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| 31 | *****************************************************************/ |
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| 32 | #define MAX_HE_ENTRY_LENGTH 60 |
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[12ce63] | 33 | typedef struct |
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[9c35ef] | 34 | { |
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| 35 | char key[MAX_HE_ENTRY_LENGTH]; |
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| 36 | char node[MAX_HE_ENTRY_LENGTH]; |
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| 37 | char url[MAX_HE_ENTRY_LENGTH]; |
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| 38 | long chksum; |
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| 39 | } heEntry_s; |
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| 40 | typedef heEntry_s * heEntry; |
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| 41 | |
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[06929a] | 42 | typedef void (*heBrowserHelpProc)(heEntry hentry, int br); |
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| 43 | typedef BOOLEAN (*heBrowserInitProc)(int warn, int br); |
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[9c35ef] | 44 | |
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| 45 | typedef struct |
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| 46 | { |
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| 47 | char* browser; |
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| 48 | heBrowserInitProc init_proc; |
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| 49 | heBrowserHelpProc help_proc; |
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[06929a] | 50 | char* required; |
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| 51 | char* action; |
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[9c35ef] | 52 | } heBrowser_s; |
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| 53 | typedef heBrowser_s * heBrowser; |
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| 54 | |
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| 55 | /***************************************************************** |
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| 56 | * |
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| 57 | * Declarations: Local functions |
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| 58 | * |
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| 59 | *****************************************************************/ |
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[12ce63] | 60 | static char* strclean(char* str); |
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[9c35ef] | 61 | static BOOLEAN heKey2Entry(char* filename, char* key, heEntry hentry); |
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| 62 | static int heReKey2Entry (char* filename, char* key, heEntry hentry); |
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| 63 | static BOOLEAN strmatch(char* s, char* re); |
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| 64 | static BOOLEAN heOnlineHelp(char* s); |
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| 65 | static void heBrowserHelp(heEntry hentry); |
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| 66 | static long heKeyChksum(char* key); |
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| 67 | |
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| 68 | // browser functions |
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[06929a] | 69 | static BOOLEAN heGenInit(int,int); static void heGenHelp(heEntry hentry,int); |
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| 70 | static void heBuiltinHelp(heEntry hentry,int); |
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| 71 | static BOOLEAN heDummyInit(int,int); static void heDummyHelp(heEntry hentry,int); |
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| 72 | static BOOLEAN heEmacsInit(int,int); static void heEmacsHelp(heEntry hentry,int); |
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[9c35ef] | 73 | |
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[358fa44] | 74 | #ifdef ix86_Win |
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[06929a] | 75 | static void heHtmlHelp(heEntry hentry,int); |
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| 76 | static void heWinHelp(heEntry hentry,int); |
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[358fa44] | 77 | #include "sing_win.h" |
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[ef0124] | 78 | #endif |
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| 79 | |
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[9c35ef] | 80 | static heBrowser heCurrentHelpBrowser = NULL; |
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[06929a] | 81 | static int heCurrentHelpBrowserIndex= -1; |
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[9c35ef] | 82 | |
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| 83 | |
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| 84 | /***************************************************************** |
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| 85 | * |
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| 86 | * Definition: available help browsers |
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| 87 | * |
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| 88 | *****************************************************************/ |
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| 89 | // order is improtant -- first possible help is choosen |
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[06929a] | 90 | #if 1 |
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| 91 | static heBrowser_s *heHelpBrowsers=NULL; |
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| 92 | #else |
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[9c35ef] | 93 | static heBrowser_s heHelpBrowsers[] = |
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| 94 | { |
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[db8559] | 95 | #ifdef ix86_Win |
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[06929a] | 96 | // { "html", heDummyInit, heHtmlHelp, NULL, NULL}, |
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| 97 | // { "winhlp", heDummyInit, heWinHelp, NULL, NULL}, |
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[9c35ef] | 98 | #endif |
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[06929a] | 99 | { "mozilla", heGenInit, heGenHelp, "xDhE:mozilla:", "(mozilla -remote \"openURL(%h)\")||(mozilla %h)"}, |
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| 100 | { "netscape", heGenInit, heGenHelp, "xDhE:netscape:", "(netscape -remote \"openURL(%h)\")||(netscape %h)"}, |
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| 101 | { "tkinfo", heGenInit, heGenHelp, "xDiE:tkinfo:", "tkinfo '(%i)%n' &"}, |
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| 102 | { "xinfo", heGenInit, heGenHelp, "xDiE:xterm:E:info:", "xterm -e info -f %i --node='%n' &"}, |
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| 103 | { "mac", heGenInit, heGenHelp, "xhE:open:","open %h" }, |
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| 104 | { "machtml", heGenInit, heGenHelp, "xE:open:","open %H" }, |
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| 105 | { "info", heGenInit, heGenHelp, "xiE:info:", "info -f %i --node='%n' &"}, |
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| 106 | { "builtin", heGenInit, heBuiltinHelp, "i", NULL}, |
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| 107 | { "dummy", heDummyInit, heDummyHelp, NULL, NULL}, |
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| 108 | { "emacs", heEmacsInit, heEmacsHelp, NULL, NULL}, |
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| 109 | { NULL, NULL, NULL, NULL, NULL} // must be the last record |
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[9c35ef] | 110 | }; |
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[06929a] | 111 | #endif |
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[9c35ef] | 112 | |
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| 113 | /***************************************************************** |
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| 114 | * |
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| 115 | * Implementation: public function |
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| 116 | * |
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| 117 | *****************************************************************/ |
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| 118 | void feHelp(char *str) |
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| 119 | { |
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| 120 | str = strclean(str); |
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| 121 | if (str == NULL) {heBrowserHelp(NULL); return;} |
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| 122 | |
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| 123 | if (strlen(str) > MAX_HE_ENTRY_LENGTH - 2) // need room for extra ** |
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| 124 | str[MAX_HE_ENTRY_LENGTH - 3] = '\0'; |
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| 125 | |
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[06929a] | 126 | BOOLEAN key_is_regexp = (strchr(str, '*') != NULL); |
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[9c35ef] | 127 | heEntry_s hentry; |
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[6fb39a] | 128 | char* idxfile = feResource('x' /*"IdxFile"*/); |
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[12ce63] | 129 | |
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[9c35ef] | 130 | // Try exact match of help string with key in index |
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| 131 | if (!key_is_regexp && idxfile != NULL && heKey2Entry(idxfile, str, &hentry)) |
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| 132 | { |
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| 133 | heBrowserHelp(&hentry); |
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| 134 | return; |
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| 135 | } |
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| 136 | |
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[11b447] | 137 | // try proc help and library help |
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[9c35ef] | 138 | if (! key_is_regexp && heOnlineHelp(str)) return; |
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[12ce63] | 139 | |
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[9c35ef] | 140 | // Try to match approximately with key in index file |
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| 141 | if (idxfile != NULL) |
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| 142 | { |
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| 143 | char* matches = StringSetS(""); |
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| 144 | int found = heReKey2Entry(idxfile, str, &hentry); |
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| 145 | |
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| 146 | // Try to match with str* |
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| 147 | if (found == 0) |
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| 148 | { |
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| 149 | char mkey[MAX_HE_ENTRY_LENGTH]; |
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| 150 | strcpy(mkey, str); |
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| 151 | strcat(mkey, "*"); |
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| 152 | found = heReKey2Entry(idxfile, mkey, &hentry); |
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| 153 | // Try to match with *str* |
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| 154 | if (found == 0) |
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| 155 | { |
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| 156 | mkey[0] = '*'; |
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| 157 | strcpy(mkey + 1, str); |
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| 158 | strcat(mkey, "*"); |
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| 159 | found = heReKey2Entry(idxfile, mkey, &hentry); |
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| 160 | } |
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[12ce63] | 161 | |
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[9c35ef] | 162 | // Print warning and return if nothing found |
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| 163 | if (found == 0) |
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| 164 | { |
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| 165 | Warn("No help for topic '%s' (not even for '*%s*')", str, str); |
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| 166 | WarnS("Try '?;' for general help"); |
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[c06a32] | 167 | WarnS("or '?Index;' for all available help topics."); |
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[9c35ef] | 168 | return; |
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| 169 | } |
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| 170 | } |
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| 171 | |
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| 172 | // do help if unique match was found |
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| 173 | if (found == 1) |
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| 174 | { |
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| 175 | heBrowserHelp(&hentry); |
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| 176 | return; |
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| 177 | } |
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| 178 | // Print warning about multiple matches and return |
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| 179 | if (key_is_regexp) |
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| 180 | Warn("No unique help for '%s'", str); |
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| 181 | else |
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| 182 | Warn("No help for topic '%s'", str); |
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| 183 | Warn("Try one of"); |
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| 184 | PrintS(matches); |
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| 185 | PrintS("\n"); |
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| 186 | return; |
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| 187 | } |
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[12ce63] | 188 | |
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[9c35ef] | 189 | // no idx file, let Browsers deal with it, if they can |
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| 190 | strcpy(hentry.key, str); |
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| 191 | *hentry.node = '\0'; |
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| 192 | *hentry.url = '\0'; |
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| 193 | hentry.chksum = 0; |
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| 194 | heBrowserHelp(&hentry); |
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| 195 | } |
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[06929a] | 196 | static void feBrowserFile() |
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| 197 | { |
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| 198 | FILE *f=feFopen("help.cnf","r",NULL,TRUE); |
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| 199 | int br=0; |
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| 200 | if (f!=NULL) |
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| 201 | { |
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| 202 | char buf[512]; |
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| 203 | while (fgets( buf, sizeof(buf), f)) |
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| 204 | { |
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| 205 | if ((buf[0]!='#') && (buf[0]>' ')) br++; |
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| 206 | } |
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| 207 | fseek(f,0,SEEK_SET); |
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| 208 | // for the 4(!) default browsers |
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| 209 | heHelpBrowsers=(heBrowser_s*)omAlloc0((br+4)*sizeof(heBrowser_s)); |
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| 210 | br=0; |
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| 211 | while (fgets( buf, sizeof(buf), f)) |
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| 212 | { |
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| 213 | if ((buf[0]!='#') && (buf[0]>' ')) |
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| 214 | { |
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| 215 | char *name=strtok(buf,"!"); |
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| 216 | char *req=strtok(NULL,"!"); |
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| 217 | char *cmd=strtok(NULL,"!"); |
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| 218 | while ((cmd[0]!='\0') && (cmd[strlen(cmd)-1]<=' ')) |
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| 219 | cmd[strlen(cmd)-1]='\0'; |
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| 220 | //Print("name %d >>%s<<\n\treq:>>%s<<\n\tcmd:>>%s<<\n",br,name,req,cmd); |
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| 221 | heHelpBrowsers[br].browser=(char *)omStrDup(name); |
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| 222 | heHelpBrowsers[br].init_proc=heGenInit; |
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| 223 | heHelpBrowsers[br].help_proc=heGenHelp; |
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| 224 | heHelpBrowsers[br].required=omStrDup(req); |
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| 225 | heHelpBrowsers[br].action=omStrDup(cmd); |
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| 226 | br++; |
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| 227 | } |
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| 228 | } |
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| 229 | fclose(f); |
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| 230 | } |
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| 231 | else |
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| 232 | { |
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[0e060f] | 233 | #ifdef ix86_Win |
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| 234 | // for the 6(!) default browsers |
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| 235 | heHelpBrowsers=(heBrowser_s*)omAlloc0(5*sizeof(heBrowser_s)); |
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| 236 | #else |
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[06929a] | 237 | // for the 4(!) default browsers |
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| 238 | heHelpBrowsers=(heBrowser_s*)omAlloc0(4*sizeof(heBrowser_s)); |
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[0e060f] | 239 | #endif |
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[06929a] | 240 | } |
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[0e060f] | 241 | #ifdef ix86_Win |
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| 242 | heHelpBrowsers[br].browser="winhlp"; |
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| 243 | heHelpBrowsers[br].init_proc=heGenInit; |
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| 244 | heHelpBrowsers[br].help_proc=heWinHelp; |
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| 245 | heHelpBrowsers[br].required="h"; |
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| 246 | //heHelpBrowsers[br].action=NULL; |
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| 247 | br++; |
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| 248 | heHelpBrowsers[br].browser="html"; |
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| 249 | heHelpBrowsers[br].init_proc=heGenInit; |
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| 250 | heHelpBrowsers[br].help_proc=heHtmlHelp; |
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| 251 | heHelpBrowsers[br].required="h"; |
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| 252 | //heHelpBrowsers[br].action=NULL; |
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| 253 | br++; |
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| 254 | #endif |
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[06929a] | 255 | heHelpBrowsers[br].browser="builtin"; |
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| 256 | heHelpBrowsers[br].init_proc=heGenInit; |
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| 257 | heHelpBrowsers[br].help_proc=heBuiltinHelp; |
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| 258 | heHelpBrowsers[br].required="i"; |
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| 259 | //heHelpBrowsers[br].action=NULL; |
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| 260 | br++; |
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| 261 | heHelpBrowsers[br].browser="dummy"; |
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| 262 | heHelpBrowsers[br].init_proc=heDummyInit; |
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| 263 | heHelpBrowsers[br].help_proc=heDummyHelp; |
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| 264 | //heHelpBrowsers[br].required=NULL; |
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| 265 | //heHelpBrowsers[br].action=NULL; |
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| 266 | br++; |
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| 267 | heHelpBrowsers[br].browser="emacs"; |
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| 268 | heHelpBrowsers[br].init_proc=heEmacsInit; |
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| 269 | heHelpBrowsers[br].help_proc=heEmacsHelp; |
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| 270 | //heHelpBrowsers[br].required=NULL; |
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| 271 | //heHelpBrowsers[br].action=NULL; |
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| 272 | //br++; |
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| 273 | //heHelpBrowsers[br].browser=NULL; |
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| 274 | //heHelpBrowsers[br].init_proc=NULL; |
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| 275 | //heHelpBrowsers[br].help_proc=NULL; |
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| 276 | //heHelpBrowsers[br].required=NULL; |
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| 277 | //heHelpBrowsers[br].action=NULL; |
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| 278 | } |
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[706c95] | 279 | |
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[09f0ee] | 280 | char* feHelpBrowser(char* which, int warn) |
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[9c35ef] | 281 | { |
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| 282 | int i = 0; |
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[12ce63] | 283 | |
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[9c35ef] | 284 | // if no argument, choose first available help browser |
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[06929a] | 285 | if (heHelpBrowsers==NULL) feBrowserFile(); |
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[9c35ef] | 286 | if (which == NULL || *which == '\0') |
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| 287 | { |
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[c06a32] | 288 | // return, if already set |
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[50cbdc] | 289 | if (heCurrentHelpBrowser != NULL) |
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[c06a32] | 290 | return heCurrentHelpBrowser->browser; |
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[12ce63] | 291 | |
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[c06a32] | 292 | // First, try emacs, if emacs-option is set |
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[2fdf64] | 293 | // Under Win, always use html |
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[db8559] | 294 | #ifndef ix86_Win |
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[c06a32] | 295 | if (feOptValue(FE_OPT_EMACS) != NULL) |
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| 296 | { |
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| 297 | while (heHelpBrowsers[i].browser != NULL) |
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| 298 | { |
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| 299 | if (strcmp(heHelpBrowsers[i].browser, "emacs") == 0 && |
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[06929a] | 300 | (heHelpBrowsers[i].init_proc(0,i))) |
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[c06a32] | 301 | { |
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| 302 | heCurrentHelpBrowser = &(heHelpBrowsers[i]); |
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[06929a] | 303 | heCurrentHelpBrowserIndex=i; |
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[c06a32] | 304 | goto Finish; |
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| 305 | } |
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| 306 | i++; |
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| 307 | } |
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| 308 | i=0; |
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| 309 | } |
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[2fdf64] | 310 | #endif |
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[9c35ef] | 311 | while (heHelpBrowsers[i].browser != NULL) |
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| 312 | { |
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[06929a] | 313 | if (heHelpBrowsers[i].init_proc(0,i)) |
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[9c35ef] | 314 | { |
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| 315 | heCurrentHelpBrowser = &(heHelpBrowsers[i]); |
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[06929a] | 316 | heCurrentHelpBrowserIndex=i; |
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[c06a32] | 317 | goto Finish; |
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[9c35ef] | 318 | } |
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| 319 | i++; |
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| 320 | } |
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| 321 | // should never get here |
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[ec7aac] | 322 | dReportBug("should never get here"); |
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[9c35ef] | 323 | } |
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[706c95] | 324 | |
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[9c35ef] | 325 | // with argument, find matching help browser |
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| 326 | while (heHelpBrowsers[i].browser != NULL && |
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| 327 | strcmp(heHelpBrowsers[i].browser, which) != 0) |
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| 328 | {i++;} |
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[12ce63] | 329 | |
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| 330 | if (heHelpBrowsers[i].browser == NULL) |
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[9c35ef] | 331 | { |
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[c06a32] | 332 | if (warn) Warn("No help browser '%s' available.", which); |
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[9c35ef] | 333 | } |
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| 334 | else |
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| 335 | { |
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| 336 | // see whether we can init it |
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[06929a] | 337 | if (heHelpBrowsers[i].init_proc(warn,i)) |
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[9c35ef] | 338 | { |
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| 339 | heCurrentHelpBrowser = &(heHelpBrowsers[i]); |
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[06929a] | 340 | heCurrentHelpBrowserIndex=i; |
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[9c35ef] | 341 | goto Finish; |
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| 342 | } |
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| 343 | } |
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[12ce63] | 344 | |
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[9c35ef] | 345 | // something went wrong |
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[12ce63] | 346 | if (heCurrentHelpBrowser == NULL) |
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[9c35ef] | 347 | { |
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| 348 | feHelpBrowser(); |
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| 349 | assume(heCurrentHelpBrowser != NULL); |
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[12ce63] | 350 | if (warn) |
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[c06a32] | 351 | Warn("Setting help browser to '%s'.", heCurrentHelpBrowser->browser); |
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[9c35ef] | 352 | return heCurrentHelpBrowser->browser; |
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| 353 | } |
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| 354 | else |
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| 355 | { |
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| 356 | // or, leave as is |
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[12ce63] | 357 | if (warn) |
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[c06a32] | 358 | Warn("Help browser stays at '%s'.", heCurrentHelpBrowser->browser); |
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| 359 | return heCurrentHelpBrowser->browser; |
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[9c35ef] | 360 | } |
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| 361 | |
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| 362 | Finish: |
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[c06a32] | 363 | // update value of Browser Option |
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| 364 | if (feOptSpec[FE_OPT_BROWSER].value == NULL || |
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[50cbdc] | 365 | strcmp((char*) feOptSpec[FE_OPT_BROWSER].value, |
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[c06a32] | 366 | heCurrentHelpBrowser->browser) != 0) |
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| 367 | { |
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[06929a] | 368 | omfree(feOptSpec[FE_OPT_BROWSER].value); |
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| 369 | feOptSpec[FE_OPT_BROWSER].value |
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[c232af] | 370 | = (void*) omStrDup(heCurrentHelpBrowser->browser); |
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[c06a32] | 371 | } |
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[9c35ef] | 372 | return heCurrentHelpBrowser->browser; |
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| 373 | } |
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| 374 | |
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[726d50] | 375 | void feStringAppendBrowsers(int warn) |
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[09f0ee] | 376 | { |
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| 377 | int i; |
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| 378 | StringAppendS("Available HelpBrowsers: "); |
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[12ce63] | 379 | |
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[09f0ee] | 380 | i = 0; |
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[06929a] | 381 | if (heHelpBrowsers==NULL) feBrowserFile(); |
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[09f0ee] | 382 | while (heHelpBrowsers[i].browser != NULL) |
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| 383 | { |
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[06929a] | 384 | if (heHelpBrowsers[i].init_proc(warn,i)) |
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[09f0ee] | 385 | StringAppend("%s, ", heHelpBrowsers[i].browser); |
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| 386 | i++; |
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| 387 | } |
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| 388 | StringAppend("\nCurrent HelpBrowser: %s ", feHelpBrowser()); |
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| 389 | } |
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[12ce63] | 390 | |
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[09f0ee] | 391 | |
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[9c35ef] | 392 | /***************************************************************** |
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| 393 | * |
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| 394 | * Implementation: local function |
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| 395 | * |
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| 396 | *****************************************************************/ |
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| 397 | // Remove whitspaces from beginning and end, return NULL if only whitespaces |
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| 398 | static char* strclean(char* str) |
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[706c95] | 399 | { |
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[9c35ef] | 400 | if (str == NULL) return NULL; |
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[706c95] | 401 | char *s=str; |
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[9c35ef] | 402 | while (*s <= ' ' && *s != '\0') s++; |
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| 403 | if (*s == '\0') return NULL; |
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[706c95] | 404 | char *ss=s; |
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| 405 | while (*ss!='\0') ss++; |
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[9c35ef] | 406 | ss--; |
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| 407 | while (*ss <= ' ' && *ss != '\0') |
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[706c95] | 408 | { |
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| 409 | *ss='\0'; |
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| 410 | ss--; |
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| 411 | } |
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[9c35ef] | 412 | if (*ss == '\0') return NULL; |
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| 413 | return s; |
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| 414 | } |
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| 415 | |
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| 416 | // Finds help entry for key: |
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| 417 | // returns filled-in hentry and TRUE, on success |
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| 418 | // FALSE, on failure |
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| 419 | // Assumes that lines of idx file have the following form |
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| 420 | // key\tnode\turl\tchksum\n (chksum ma be empty, then it is set to -1) |
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| 421 | // and that lines are sorted alpahbetically w.r.t. index entries |
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| 422 | static BOOLEAN heKey2Entry(char* filename, char* key, heEntry hentry) |
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| 423 | { |
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| 424 | FILE* fd; |
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| 425 | char c, k; |
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| 426 | int kl, i; |
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| 427 | *(hentry->key) = '\0'; |
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| 428 | *(hentry->url) = '\0'; |
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| 429 | *(hentry->node) = '\0'; |
---|
| 430 | hentry->chksum = 0; |
---|
| 431 | if (filename == NULL || key == NULL) return FALSE; |
---|
| 432 | fd = fopen(filename, "r"); |
---|
| 433 | if (fd == NULL) return FALSE; |
---|
| 434 | kl = strlen(key); |
---|
[706c95] | 435 | |
---|
[9c35ef] | 436 | k = key[0]; |
---|
| 437 | i = 0; |
---|
| 438 | while ((c = getc(fd)) != EOF) |
---|
| 439 | { |
---|
[12ce63] | 440 | if (c < k) |
---|
[9c35ef] | 441 | { |
---|
| 442 | /* Skip line */ |
---|
| 443 | while (getc(fd) != '\n') {}; |
---|
[12ce63] | 444 | if (i) |
---|
[9c35ef] | 445 | { |
---|
| 446 | i=0; |
---|
| 447 | k=key[0]; |
---|
| 448 | } |
---|
| 449 | } |
---|
| 450 | else if (c == k) |
---|
| 451 | { |
---|
| 452 | i++; |
---|
| 453 | if (i == kl) |
---|
| 454 | { |
---|
| 455 | // \t must follow, otherwise only substring match |
---|
| 456 | if (getc(fd) != '\t') goto Failure; |
---|
| 457 | |
---|
| 458 | // Now we found an exact match |
---|
| 459 | if (hentry->key != key) strcpy(hentry->key, key); |
---|
| 460 | // get node |
---|
| 461 | i = 0; |
---|
| 462 | while ((c = getc(fd)) != '\t' && c != EOF) |
---|
| 463 | { |
---|
| 464 | hentry->node[i] = c; |
---|
| 465 | i++; |
---|
| 466 | } |
---|
| 467 | if (c == EOF) goto Failure; |
---|
[12ce63] | 468 | |
---|
[9c35ef] | 469 | // get url |
---|
| 470 | hentry->node[i] = '\0'; |
---|
| 471 | i = 0; |
---|
| 472 | while ((c = getc(fd)) != '\t' && c != EOF) |
---|
| 473 | { |
---|
| 474 | hentry->url[i] = c; |
---|
| 475 | i++; |
---|
| 476 | } |
---|
| 477 | if (c == EOF) goto Failure; |
---|
| 478 | |
---|
| 479 | // get chksum |
---|
| 480 | hentry->url[i] = '\0'; |
---|
| 481 | |
---|
| 482 | if (fscanf(fd, "%ld\n", &(hentry->chksum)) != 1) |
---|
| 483 | { |
---|
| 484 | hentry->chksum = -1; |
---|
| 485 | } |
---|
| 486 | fclose(fd); |
---|
| 487 | return TRUE; |
---|
| 488 | } |
---|
[12ce63] | 489 | else if (i > kl) |
---|
[9c35ef] | 490 | { |
---|
| 491 | goto Failure; |
---|
| 492 | } |
---|
| 493 | else |
---|
| 494 | { |
---|
| 495 | k = key[i]; |
---|
| 496 | } |
---|
| 497 | } |
---|
| 498 | else |
---|
| 499 | { |
---|
| 500 | goto Failure; |
---|
| 501 | } |
---|
| 502 | } |
---|
| 503 | Failure: |
---|
| 504 | fclose(fd); |
---|
| 505 | return FALSE; |
---|
| 506 | } |
---|
| 507 | |
---|
| 508 | // return TRUE if s matches re |
---|
| 509 | // FALSE, otherwise |
---|
| 510 | // does not distinguish lower and upper cases |
---|
| 511 | // inteprets * as wildcard |
---|
| 512 | static BOOLEAN strmatch(char* s, char* re) |
---|
| 513 | { |
---|
[12ce63] | 514 | if (s == NULL || *s == '\0') |
---|
[9c35ef] | 515 | return (re == NULL || *re == '\0' || strcmp(re, "*") == 0); |
---|
| 516 | if (re == NULL || *re == '\0') return FALSE; |
---|
| 517 | |
---|
| 518 | int i; |
---|
| 519 | char ls[MAX_HE_ENTRY_LENGTH + 1]; |
---|
| 520 | char rs[MAX_HE_ENTRY_LENGTH + 1]; |
---|
| 521 | char *l, *r, *ll, *rr; |
---|
[12ce63] | 522 | |
---|
[9c35ef] | 523 | // make everything to lower case |
---|
| 524 | i=1; |
---|
| 525 | ls[0] = '\0'; |
---|
| 526 | do |
---|
| 527 | { |
---|
| 528 | if (*s >= 'A' && *s <= 'Z') ls[i] = *s + ('a' - 'A'); |
---|
| 529 | else ls[i] = *s; |
---|
| 530 | i++; |
---|
| 531 | s++; |
---|
| 532 | } while (*s != '\0'); |
---|
| 533 | ls[i] = '\0'; |
---|
| 534 | l = &(ls[1]); |
---|
[12ce63] | 535 | |
---|
[9c35ef] | 536 | i=1; |
---|
| 537 | rs[0] = '\0'; |
---|
| 538 | do |
---|
| 539 | { |
---|
| 540 | if (*re >= 'A' && *re <= 'Z') rs[i]= *re + ('a' - 'A'); |
---|
| 541 | else rs[i] = *re; |
---|
| 542 | i++; |
---|
| 543 | re++; |
---|
| 544 | } while (*re != '\0'); |
---|
| 545 | rs[i] = '\0'; |
---|
| 546 | r = &(rs[1]); |
---|
[12ce63] | 547 | |
---|
[9c35ef] | 548 | // chopp of exact matches from beginning and end |
---|
| 549 | while (*r != '*' && *r != '\0' && *l != '\0') |
---|
| 550 | { |
---|
| 551 | if (*r != *l) return FALSE; |
---|
| 552 | *r = '\0'; |
---|
| 553 | *s = '\0'; |
---|
| 554 | r++; |
---|
| 555 | l++; |
---|
| 556 | } |
---|
| 557 | if (*r == '\0') return (*l == '\0'); |
---|
| 558 | if (*r == '*' && r[1] == '\0') return TRUE; |
---|
| 559 | if (*l == '\0') return FALSE; |
---|
| 560 | |
---|
| 561 | rr = &r[strlen(r) - 1]; |
---|
| 562 | ll = &l[strlen(l) - 1]; |
---|
| 563 | while (*rr != '*' && *rr != '\0' && *ll != '\0') |
---|
| 564 | { |
---|
| 565 | if (*rr != *ll) return FALSE; |
---|
| 566 | *rr = '\0'; |
---|
| 567 | *ll = '\0'; |
---|
| 568 | rr--; |
---|
| 569 | ll--; |
---|
| 570 | } |
---|
| 571 | if (*rr == '\0') return (*ll == '\0'); |
---|
| 572 | if (*rr == '*' && rr[-1] == '\0') return TRUE; |
---|
| 573 | if (*ll == '\0') return FALSE; |
---|
[12ce63] | 574 | |
---|
[9c35ef] | 575 | // now *r starts with a * and ends with a * |
---|
| 576 | r++; |
---|
| 577 | *rr = '\0'; rr--; |
---|
| 578 | while (*r != '\0') |
---|
| 579 | { |
---|
| 580 | rr = r + 1; |
---|
| 581 | while (*rr != '*' && *rr != '\0') rr++; |
---|
[12ce63] | 582 | if (*rr == '*') |
---|
[9c35ef] | 583 | { |
---|
| 584 | *rr = '\0'; |
---|
| 585 | rr++; |
---|
| 586 | } |
---|
| 587 | l = strstr(l, r); |
---|
| 588 | if (l == NULL) return FALSE; |
---|
| 589 | r = rr; |
---|
| 590 | } |
---|
| 591 | return TRUE; |
---|
| 592 | } |
---|
| 593 | |
---|
[09f0ee] | 594 | // similar to heKey2Entry, except that |
---|
[9c35ef] | 595 | // key is taken as regexp (see above) |
---|
| 596 | // and number of matches is returned |
---|
| 597 | // if number of matches > 0, then hentry contains entry for first match |
---|
| 598 | // if number of matches > 1, matches are printed as komma-separated |
---|
| 599 | // into global string |
---|
| 600 | static int heReKey2Entry (char* filename, char* key, heEntry hentry) |
---|
| 601 | { |
---|
| 602 | int i = 0; |
---|
| 603 | FILE* fd; |
---|
| 604 | char index_key[MAX_HE_ENTRY_LENGTH]; |
---|
[12ce63] | 605 | |
---|
[9c35ef] | 606 | if (filename == NULL || key == NULL) return 0; |
---|
| 607 | fd = fopen(filename, "r"); |
---|
| 608 | if (fd == NULL) return 0; |
---|
| 609 | while (fscanf(fd, "%[^\t]\t%*[^\n]\n", index_key) == 1) |
---|
| 610 | { |
---|
| 611 | if (strmatch(index_key, key)) |
---|
| 612 | { |
---|
| 613 | i++; |
---|
| 614 | if (i == 1) |
---|
| 615 | { |
---|
| 616 | heKey2Entry(filename, index_key, hentry); |
---|
| 617 | } |
---|
| 618 | else if (i == 2) |
---|
| 619 | { |
---|
| 620 | StringAppend("?%s; ?%s;", hentry->key, index_key); |
---|
| 621 | } |
---|
| 622 | else |
---|
| 623 | { |
---|
| 624 | StringAppend(" ?%s;", index_key); |
---|
| 625 | } |
---|
| 626 | } |
---|
| 627 | } |
---|
| 628 | fclose(fd); |
---|
| 629 | return i; |
---|
| 630 | } |
---|
| 631 | |
---|
| 632 | // try to find the help string as a loaded procedure or library |
---|
| 633 | // if found, display the help and return TRUE |
---|
| 634 | // otherwise, return FALSE |
---|
| 635 | static BOOLEAN heOnlineHelp(char* s) |
---|
| 636 | { |
---|
[06929a] | 637 | #ifdef HAVE_NAMESPACES |
---|
| 638 | idhdl h, ns; |
---|
| 639 | iiname2hdl(s, &ns, &h); |
---|
| 640 | #else /* HAVE_NAMESPACES */ |
---|
[6e3652] | 641 | #ifdef HAVE_NS |
---|
| 642 | idhdl h=IDROOT->get(s,myynest); |
---|
| 643 | #else |
---|
[06929a] | 644 | idhdl h=idroot->get(s,myynest); |
---|
[6e3652] | 645 | #endif /* HAVE_NS */ |
---|
[06929a] | 646 | #endif /* HAVE_NAMESPACES */ |
---|
[9c35ef] | 647 | |
---|
| 648 | // try help for a procedure |
---|
| 649 | if ((h!=NULL) && (IDTYP(h)==PROC_CMD)) |
---|
[706c95] | 650 | { |
---|
[06929a] | 651 | char *lib=iiGetLibName(IDPROC(h)); |
---|
| 652 | if((lib!=NULL)&&(*lib!='\0')) |
---|
[706c95] | 653 | { |
---|
[06929a] | 654 | Print("// proc %s from lib %s\n",s,lib); |
---|
| 655 | s=iiGetLibProcBuffer(IDPROC(h), 0); |
---|
| 656 | if (s!=NULL) |
---|
[b54305] | 657 | { |
---|
[06929a] | 658 | PrintS(s); |
---|
| 659 | omFree((ADDRESS)s); |
---|
| 660 | } |
---|
[9c35ef] | 661 | return TRUE; |
---|
[706c95] | 662 | } |
---|
[9c35ef] | 663 | return FALSE; |
---|
| 664 | } |
---|
[12ce63] | 665 | |
---|
[9c35ef] | 666 | // try help for a library |
---|
| 667 | int ls = strlen(s); |
---|
| 668 | char* str = NULL; |
---|
[11b447] | 669 | // check that it ends with "[.,_]lib" |
---|
[9c35ef] | 670 | if (strlen(s) >=4 && strcmp(&s[ls-3], "lib") == 0) |
---|
| 671 | { |
---|
| 672 | if (s[ls - 4] == '.') str = s; |
---|
| 673 | else |
---|
| 674 | { |
---|
[c232af] | 675 | str = omStrDup(s); |
---|
[9c35ef] | 676 | str[ls - 4] = '.'; |
---|
| 677 | } |
---|
| 678 | } |
---|
| 679 | else |
---|
| 680 | { |
---|
| 681 | return FALSE; |
---|
[706c95] | 682 | } |
---|
| 683 | |
---|
| 684 | char libnamebuf[128]; |
---|
| 685 | FILE *fp=NULL; |
---|
[698457] | 686 | // first, search for library of that name in LIB string |
---|
[50cbdc] | 687 | if ((str[1]!='\0') && |
---|
[698457] | 688 | ((iiLocateLib(str, libnamebuf) && (fp=feFopen(libnamebuf, "rb")) !=NULL) |
---|
| 689 | || |
---|
| 690 | ((fp=feFopen(str,"rb", libnamebuf))!=NULL))) |
---|
[706c95] | 691 | { |
---|
[9c35ef] | 692 | extern FILE *yylpin; |
---|
| 693 | lib_style_types lib_style; // = OLD_LIBSTYLE; |
---|
[12ce63] | 694 | |
---|
[9c35ef] | 695 | yylpin = fp; |
---|
[06929a] | 696 | #ifdef HAVE_NAMESPACES |
---|
[a3bc95e] | 697 | yylplex(str, libnamebuf, &lib_style, IDROOT, FALSE, GET_INFO); |
---|
[06929a] | 698 | #else /* HAVE_NAMESPACES */ |
---|
[6e3652] | 699 | #ifdef HAVE_NS |
---|
| 700 | yylplex(str, libnamebuf, &lib_style, IDROOT, FALSE, GET_INFO); |
---|
| 701 | #else |
---|
[9c35ef] | 702 | yylplex(str, libnamebuf, &lib_style, GET_INFO); |
---|
[6e3652] | 703 | #endif /* HAVE_NS */ |
---|
[06929a] | 704 | #endif /* HAVE_NAMESPACES */ |
---|
[9c35ef] | 705 | reinit_yylp(); |
---|
| 706 | if(lib_style == OLD_LIBSTYLE) |
---|
| 707 | { |
---|
| 708 | char buf[256]; |
---|
| 709 | fseek(fp, 0, SEEK_SET); |
---|
| 710 | Warn( "library %s has an old format. Please fix it for the next time", |
---|
| 711 | str); |
---|
[c232af] | 712 | if (str != s) omFree(str); |
---|
[9c35ef] | 713 | BOOLEAN found=FALSE; |
---|
| 714 | while (fgets( buf, sizeof(buf), fp)) |
---|
[706c95] | 715 | { |
---|
[9c35ef] | 716 | if (strncmp(buf,"//",2)==0) |
---|
[706c95] | 717 | { |
---|
[9c35ef] | 718 | if (found) return TRUE; |
---|
| 719 | } |
---|
| 720 | else if ((strncmp(buf,"proc ",5)==0)||(strncmp(buf,"LIB ",4)==0)) |
---|
| 721 | { |
---|
| 722 | if (!found) WarnS("no help part in library found"); |
---|
| 723 | return TRUE; |
---|
| 724 | } |
---|
| 725 | else |
---|
| 726 | { |
---|
| 727 | found=TRUE; |
---|
| 728 | PrintS(buf); |
---|
[706c95] | 729 | } |
---|
| 730 | } |
---|
[9c35ef] | 731 | } |
---|
| 732 | else |
---|
| 733 | { |
---|
[c232af] | 734 | if (str != s) omFree(str); |
---|
[9c35ef] | 735 | fclose( yylpin ); |
---|
| 736 | PrintS(text_buffer); |
---|
[c232af] | 737 | omFree(text_buffer); |
---|
[9c35ef] | 738 | text_buffer=NULL; |
---|
| 739 | } |
---|
| 740 | return TRUE; |
---|
| 741 | } |
---|
| 742 | |
---|
[c232af] | 743 | if (str != s) omFree(str); |
---|
[9c35ef] | 744 | return FALSE; |
---|
| 745 | } |
---|
| 746 | |
---|
| 747 | static long heKeyChksum(char* key) |
---|
| 748 | { |
---|
| 749 | if (key == NULL || *key == '\0') return 0; |
---|
[06929a] | 750 | #ifdef HAVE_NAMESPACES |
---|
| 751 | idhdl h, ns; |
---|
| 752 | iiname2hdl(key, &ns, &h); |
---|
| 753 | #else /* HAVE_NAMESPACES */ |
---|
[6e3652] | 754 | #ifdef HAVE_NS |
---|
| 755 | idhdl h=IDROOT->get(key,myynest); |
---|
| 756 | #else |
---|
[06929a] | 757 | idhdl h=idroot->get(key,myynest); |
---|
[6e3652] | 758 | #endif /* HAVE_NS */ |
---|
[06929a] | 759 | #endif /* HAVE_NAMESPACES */ |
---|
[9c35ef] | 760 | if ((h!=NULL) && (IDTYP(h)==PROC_CMD)) |
---|
| 761 | { |
---|
| 762 | procinfo *pi = IDPROC(h); |
---|
| 763 | if (pi != NULL) return pi->data.s.help_chksum; |
---|
| 764 | } |
---|
| 765 | return 0; |
---|
| 766 | } |
---|
| 767 | |
---|
| 768 | /***************************************************************** |
---|
| 769 | * |
---|
| 770 | * Implementation : Help Browsers |
---|
| 771 | * |
---|
| 772 | *****************************************************************/ |
---|
[12ce63] | 773 | |
---|
[97b6d9] | 774 | static BOOLEAN feHelpCalled = FALSE; |
---|
| 775 | |
---|
[9c35ef] | 776 | static void heBrowserHelp(heEntry hentry) |
---|
| 777 | { |
---|
| 778 | // check checksums of procs |
---|
[12ce63] | 779 | int kchksum = (hentry != NULL && hentry->chksum > 0 ? |
---|
[9c35ef] | 780 | heKeyChksum(hentry->key) : 0); |
---|
[12ce63] | 781 | if (kchksum && kchksum != hentry->chksum && heOnlineHelp(hentry->key)) |
---|
[706c95] | 782 | return; |
---|
[12ce63] | 783 | |
---|
[c06a32] | 784 | if (heCurrentHelpBrowser == NULL) feHelpBrowser(NULL, 0); |
---|
[97b6d9] | 785 | assume(heCurrentHelpBrowser != NULL); |
---|
| 786 | if (! feHelpCalled) |
---|
[01fdf5] | 787 | { |
---|
| 788 | Warn("Displaying help in browser '%s'.", heCurrentHelpBrowser->browser); |
---|
[b6f537] | 789 | if (strcmp(heCurrentHelpBrowser->browser, "netscape") == 0 && |
---|
| 790 | feResource('h', 0) == NULL) |
---|
| 791 | { |
---|
| 792 | Warn("Using URL '%s'.", feResource('u', 0)); |
---|
| 793 | } |
---|
| 794 | Warn("Use 'system(\"--browser\", <browser>);' to change browser,"); |
---|
[bea8e49] | 795 | char* browsers = StringSetS("where <browser> can be: "); |
---|
| 796 | int i = 0; |
---|
| 797 | i = 0; |
---|
| 798 | while (heHelpBrowsers[i].browser != NULL) |
---|
| 799 | { |
---|
[06929a] | 800 | if (heHelpBrowsers[i].init_proc(0,i)) |
---|
[bea8e49] | 801 | StringAppend("\"%s\", ", heHelpBrowsers[i].browser); |
---|
| 802 | i++; |
---|
| 803 | } |
---|
| 804 | if (browsers[strlen(browsers)-2] == ',') |
---|
| 805 | { |
---|
| 806 | browsers[strlen(browsers)-2] = '.'; |
---|
| 807 | browsers[strlen(browsers)-1] = '\0'; |
---|
| 808 | } |
---|
| 809 | WarnS(browsers); |
---|
[01fdf5] | 810 | } |
---|
[b54305] | 811 | |
---|
[06929a] | 812 | heCurrentHelpBrowser->help_proc(hentry, heCurrentHelpBrowserIndex); |
---|
[bea8e49] | 813 | feHelpCalled = TRUE; |
---|
[9c35ef] | 814 | } |
---|
| 815 | |
---|
| 816 | #define MAX_SYSCMD_LEN MAXPATHLEN*2 |
---|
[06929a] | 817 | static BOOLEAN heGenInit(int warn, int br) |
---|
[9c35ef] | 818 | { |
---|
[06929a] | 819 | if (heHelpBrowsers[br].required==NULL) return TRUE; |
---|
| 820 | char *p=heHelpBrowsers[br].required; |
---|
| 821 | while (*p>'\0') |
---|
[706c95] | 822 | { |
---|
[06929a] | 823 | switch (*p) |
---|
[6123fa2] | 824 | { |
---|
[06929a] | 825 | case '#': break; |
---|
| 826 | case ' ': break; |
---|
| 827 | case 'i': /* singular.hlp */ |
---|
| 828 | case 'x': /* singular.idx */ |
---|
| 829 | case 'h': /* html dir */ |
---|
| 830 | if (feResource(*p, warn) == NULL) |
---|
| 831 | { |
---|
| 832 | if (warn) Warn("ressource `%c` not found",*p); |
---|
| 833 | return FALSE; |
---|
| 834 | } |
---|
| 835 | break; |
---|
| 836 | case 'D': /* DISPLAY */ |
---|
| 837 | if (getenv("DISPLAY") == NULL) |
---|
| 838 | { |
---|
| 839 | if (warn) WarnS("ressource `D` not found"); |
---|
| 840 | return FALSE; |
---|
| 841 | } |
---|
| 842 | break; |
---|
| 843 | case 'E': /* executable: E:xterm: */ |
---|
| 844 | { |
---|
| 845 | char name[128]; |
---|
| 846 | char exec[128]; |
---|
| 847 | memset(name,0,128); |
---|
| 848 | int i=0; |
---|
| 849 | p++; |
---|
| 850 | while (((*p==':')||(*p<=' ')) && (*p!='\0')) p++; |
---|
| 851 | while((i<127) && (*p>' ') && (*p!=':')) |
---|
| 852 | { |
---|
| 853 | name[i]=*p; p++; i++; |
---|
| 854 | } |
---|
| 855 | if (i==0) return FALSE; |
---|
| 856 | if (omFindExec(name,exec)==NULL) |
---|
| 857 | { |
---|
| 858 | if (warn) Warn("executable `%s` not found",name); |
---|
| 859 | return FALSE; |
---|
| 860 | } |
---|
| 861 | } |
---|
| 862 | break; |
---|
| 863 | default: Warn("unknown char %c",*p); |
---|
| 864 | break; |
---|
[6123fa2] | 865 | } |
---|
[06929a] | 866 | p++; |
---|
[706c95] | 867 | } |
---|
[9c35ef] | 868 | return TRUE; |
---|
[706c95] | 869 | } |
---|
[0e060f] | 870 | #ifdef ix86_Win |
---|
| 871 | static void heHtmlHelp(heEntry hentry, int br) |
---|
| 872 | { |
---|
| 873 | char url[MAXPATHLEN]; |
---|
| 874 | char* html_dir = feResource('h' /*"HtmlDir"*/); |
---|
| 875 | sprintf(url, "%s/%s", |
---|
| 876 | (html_dir != NULL ? html_dir : feResource('u' /*"ManualUrl"*/)), |
---|
| 877 | (hentry!=NULL && *(hentry->url)!='\0' ? hentry->url : "index.htm")); |
---|
| 878 | |
---|
| 879 | heOpenWinntUrl(url, (html_dir != NULL ? 1 : 0)); |
---|
| 880 | } |
---|
[6123fa2] | 881 | |
---|
[0e060f] | 882 | static void heWinHelp(heEntry hentry, int br) |
---|
| 883 | { |
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| 884 | char keyw[MAX_HE_ENTRY_LENGTH]; |
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| 885 | if ((hentry!=NULL)&&(hentry->key!=NULL)) |
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| 886 | strcpy(keyw,hentry->key); |
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| 887 | else |
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| 888 | strcpy(keyw," "); |
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| 889 | char* helppath = feResource('h' /*"HtmlDir"*/); |
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| 890 | const char *filename="/Manual.hlp"; |
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| 891 | int helppath_len=0; |
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| 892 | if (helppath!=NULL) helppath_len=strlen(helppath); |
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| 893 | char *callpath=(char *)omAlloc0(helppath_len+strlen(filename)+1); |
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| 894 | if ((helppath!=NULL) && (*helppath>' ')) |
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| 895 | strcpy(callpath,helppath); |
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| 896 | strcat(callpath,filename); |
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| 897 | heOpenWinntHlp(keyw,callpath); |
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| 898 | omfree(callpath); |
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| 899 | } |
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| 900 | #endif |
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[06929a] | 901 | static void heGenHelp(heEntry hentry, int br) |
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[9c35ef] | 902 | { |
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| 903 | char sys[MAX_SYSCMD_LEN]; |
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| 904 | char url[MAXPATHLEN]; |
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[06929a] | 905 | char *p=heHelpBrowsers[br].action; |
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| 906 | if (p==NULL) {PrintS("no action ?\n"); return;} |
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| 907 | memset(sys,0,MAX_SYSCMD_LEN); |
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| 908 | int i=0; |
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| 909 | while ((*p>'\0')&& (i<MAX_SYSCMD_LEN)) |
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[9c35ef] | 910 | { |
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[06929a] | 911 | if ((*p)=='%') |
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| 912 | { |
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| 913 | p++; |
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| 914 | switch (*p) |
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| 915 | { |
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| 916 | case 'f': /* local html:file */ |
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| 917 | case 'h': /* local html:URL */ |
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| 918 | case 'H': /* www html */ |
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| 919 | { |
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| 920 | char temp[256]; |
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| 921 | char *htmldir = feResource('h' /*"HtmlDir"*/); |
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| 922 | if ((*p=='h')&&(htmldir!=NULL)) |
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| 923 | strcat(sys,"file://localhost"); |
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| 924 | else if ((*p=='H')||(htmldir==NULL)) |
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| 925 | htmldir = feResource('u' /* %H -> "ManualUrl"*/); |
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| 926 | /* always defined */ |
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| 927 | if (hentry != NULL && *(hentry->url) != '\0') |
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| 928 | #ifdef HAVE_VSNPRINTF |
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| 929 | snprintf(temp,256,"%s/%s", htmldir, hentry->url); |
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| 930 | else |
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| 931 | snprintf(temp,256,"%s/index.htm", htmldir); |
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| 932 | #else |
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| 933 | sprintf(temp,"%s/%s", htmldir, hentry->url); |
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| 934 | else |
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| 935 | sprintf(temp,"%s/index.htm", htmldir); |
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| 936 | #endif |
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| 937 | strcat(sys,temp); |
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| 938 | if ((*p)=='f') |
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| 939 | { // remove #SEC |
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| 940 | char *pp=strchr(sys,'#'); |
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| 941 | if (pp!=NULL) |
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| 942 | { |
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| 943 | *pp='\0'; |
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| 944 | i=strlen(sys); |
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| 945 | memset(pp,0,MAX_SYSCMD_LEN-i); |
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| 946 | } |
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| 947 | } |
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| 948 | i=strlen(sys); |
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| 949 | break; |
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| 950 | } |
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| 951 | case 'i': /* singular.hlp */ |
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| 952 | { |
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| 953 | char *i_res=feResource('i'); |
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| 954 | if (i_res!=NULL) strcat(sys,i_res); |
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| 955 | else |
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| 956 | { |
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| 957 | WarnS("singular.hlp not found"); |
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| 958 | return; |
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| 959 | } |
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| 960 | i=strlen(sys); |
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| 961 | break; |
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| 962 | } |
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| 963 | case 'n': /* info node */ |
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| 964 | { |
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| 965 | char temp[256]; |
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| 966 | if ((hentry!=NULL) && (*(hentry->node) != '\0')) |
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| 967 | sprintf(temp,"%s",hentry->node); |
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| 968 | //else if ((hentry!=NULL) && (hentry->key!=NULL)) |
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| 969 | // sprintf(temp,"Index '%s'",hentry->key); |
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| 970 | else |
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| 971 | sprintf(temp,"Top"); |
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| 972 | strcat(sys,temp); |
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| 973 | i=strlen(sys); |
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| 974 | break; |
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| 975 | } |
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| 976 | default: break; |
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| 977 | } |
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| 978 | p++; |
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| 979 | } |
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| 980 | else |
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[bea8e49] | 981 | { |
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[06929a] | 982 | sys[i]=*p; |
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| 983 | p++;i++; |
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[bea8e49] | 984 | } |
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| 985 | } |
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[06929a] | 986 | Print("running `%s`\n",sys); |
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| 987 | system(sys); |
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[9c35ef] | 988 | } |
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[706c95] | 989 | |
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[358fa44] | 990 | #ifdef ix86_Win |
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[ef0124] | 991 | static void heHtmlHelp(heEntry hentry) |
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| 992 | { |
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| 993 | char url[MAXPATHLEN]; |
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| 994 | char* html_dir = feResource('h' /*"HtmlDir"*/); |
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| 995 | sprintf(url, "%s/%s", |
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| 996 | (html_dir != NULL ? html_dir : feResource('u' /*"ManualUrl"*/)), |
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| 997 | (hentry!=NULL && *(hentry->url)!='\0' ? hentry->url : "index.htm")); |
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| 998 | |
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| 999 | heOpenWinntUrl(url, (html_dir != NULL ? 1 : 0)); |
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| 1000 | } |
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[358fa44] | 1001 | |
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| 1002 | static void heWinHelp(heEntry hentry) |
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| 1003 | { |
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| 1004 | char keyw[MAX_HE_ENTRY_LENGTH]; |
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[50cbdc] | 1005 | if ((hentry!=NULL)&&(hentry->key!=NULL)) |
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| 1006 | strcpy(keyw,hentry->key); |
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| 1007 | else |
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| 1008 | strcpy(keyw," "); |
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[358fa44] | 1009 | char* helppath = feResource('h' /*"HtmlDir"*/); |
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| 1010 | const char *filename="/Manual.hlp"; |
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[50cbdc] | 1011 | int helppath_len=0; |
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| 1012 | if (helppath!=NULL) helppath_len=strlen(helppath); |
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| 1013 | char *callpath=(char *)omAlloc0(helppath_len+strlen(filename)+1); |
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| 1014 | if ((helppath!=NULL) && (*helppath>' ')) |
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| 1015 | strcpy(callpath,helppath); |
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| 1016 | strcat(callpath,filename); |
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| 1017 | heOpenWinntHlp(keyw,callpath); |
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| 1018 | omfree(callpath); |
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[358fa44] | 1019 | } |
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[ef0124] | 1020 | #endif |
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| 1021 | |
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[06929a] | 1022 | static BOOLEAN heDummyInit(int warn, int br) |
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[9c35ef] | 1023 | { |
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| 1024 | return TRUE; |
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| 1025 | } |
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[06929a] | 1026 | static void heDummyHelp(heEntry hentry, int br) |
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[9c35ef] | 1027 | { |
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| 1028 | Werror("No functioning help browser available."); |
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| 1029 | } |
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| 1030 | |
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[06929a] | 1031 | static BOOLEAN heEmacsInit(int warn, int br) |
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[9c35ef] | 1032 | { |
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| 1033 | return TRUE; |
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| 1034 | } |
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[06929a] | 1035 | static void heEmacsHelp(heEntry hentry, int br) |
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[9c35ef] | 1036 | { |
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| 1037 | WarnS("Your help command could not be executed. Use"); |
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[12ce63] | 1038 | Warn("C-h C-s %s", |
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[9c35ef] | 1039 | (hentry != NULL && *(hentry->node) != '\0' ? hentry->node : "Top")); |
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[bb4fa2] | 1040 | Warn("to enter the Singular online help. For general"); |
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[6fc3de] | 1041 | Warn("information on Singular running under Emacs, type C-h m."); |
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[9c35ef] | 1042 | } |
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| 1043 | static int singular_manual(char *str); |
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[06929a] | 1044 | static void heBuiltinHelp(heEntry hentry, int br) |
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[9c35ef] | 1045 | { |
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[c232af] | 1046 | char* node = omStrDup(hentry != NULL && *(hentry->node) != '\0' ? |
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[9c35ef] | 1047 | hentry->node : "Top"); |
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| 1048 | singular_manual(node); |
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[c232af] | 1049 | omFree(node); |
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[9c35ef] | 1050 | } |
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[706c95] | 1051 | |
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[12ce63] | 1052 | |
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[9c35ef] | 1053 | /* ========================================================================== */ |
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[09f0ee] | 1054 | // old, stupid builtin_help |
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[9c35ef] | 1055 | // This could be implemented much more clever, but I'm too lazy to do this now |
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| 1056 | // |
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| 1057 | #define HELP_OK 0 |
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[706c95] | 1058 | #define FIN_INDEX '\037' |
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| 1059 | #define HELP_NOT_OPEN 1 |
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| 1060 | #define HELP_NOT_FOUND 2 |
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[9c35ef] | 1061 | #define BUF_LEN 256 |
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[706c95] | 1062 | #define IDX_LEN 64 |
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| 1063 | #define MAX_LINES 21 |
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| 1064 | |
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| 1065 | static inline char tolow(char p) |
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| 1066 | { |
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| 1067 | if (('A'<=p)&&(p<='Z')) return p | 040; |
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| 1068 | return p; |
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| 1069 | } |
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| 1070 | |
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| 1071 | /*************************************************/ |
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| 1072 | static int show(unsigned long offset,FILE *help, char *close) |
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| 1073 | { char buffer[BUF_LEN+1]; |
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| 1074 | int lines = 0; |
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| 1075 | |
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| 1076 | if( help== NULL) |
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[9c35ef] | 1077 | if( (help = fopen(feResource('i'), "rb")) == NULL) |
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[706c95] | 1078 | return HELP_NOT_OPEN; |
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| 1079 | |
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| 1080 | fseek(help, (long)(offset+1), (int)0); |
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| 1081 | while( !feof(help) |
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| 1082 | && *fgets(buffer, BUF_LEN, help) != EOF |
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| 1083 | && buffer[0] != FIN_INDEX) |
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| 1084 | { |
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| 1085 | printf("%s", buffer); |
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| 1086 | if(lines++> MAX_LINES) |
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| 1087 | { |
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| 1088 | printf("\n Press <RETURN> to continue or x to exit help.\n"); |
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| 1089 | fflush(stdout); |
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| 1090 | *close = (char)getchar(); |
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| 1091 | if(*close=='x') |
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| 1092 | { |
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| 1093 | getchar(); |
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| 1094 | break; |
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| 1095 | } |
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| 1096 | lines=0; |
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| 1097 | } |
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| 1098 | } |
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| 1099 | if(*close!='x') |
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| 1100 | { |
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| 1101 | printf("\nEnd of part. Press <RETURN> to continue or x to exit help.\n"); |
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| 1102 | fflush(stdout); |
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| 1103 | *close = (char)getchar(); |
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| 1104 | if(*close=='x') |
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| 1105 | getchar(); |
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| 1106 | } |
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| 1107 | return HELP_OK; |
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| 1108 | } |
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| 1109 | |
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| 1110 | /*************************************************/ |
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[9c35ef] | 1111 | static int singular_manual(char *str) |
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[706c95] | 1112 | { FILE *index=NULL,*help=NULL; |
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| 1113 | unsigned long offset; |
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| 1114 | char *p,close; |
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| 1115 | int done = 0; |
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| 1116 | char buffer[BUF_LEN+1], |
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| 1117 | Index[IDX_LEN+1], |
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| 1118 | String[IDX_LEN+1]; |
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| 1119 | |
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[9c35ef] | 1120 | if( (index = fopen(feResource('i'), "rb")) == NULL) |
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[706c95] | 1121 | { |
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| 1122 | return HELP_NOT_OPEN; |
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| 1123 | } |
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| 1124 | |
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| 1125 | for(p=str; *p; p++) *p = tolow(*p);/* */ |
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| 1126 | do |
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| 1127 | { |
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| 1128 | p--; |
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| 1129 | } |
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| 1130 | while ((p != str) && (*p<=' ')); |
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| 1131 | p++; |
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| 1132 | *p='\0'; |
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| 1133 | (void)sprintf(String, " %s ", str); |
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| 1134 | |
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| 1135 | while(!feof(index) |
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| 1136 | && fgets(buffer, BUF_LEN, index) != (char *)0 |
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| 1137 | && buffer[0] != FIN_INDEX); |
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| 1138 | |
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| 1139 | while(!feof(index)) |
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| 1140 | { |
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| 1141 | (void)fgets(buffer, BUF_LEN, index); /* */ |
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| 1142 | (void)sscanf(buffer, "Node:%[^\177]\177%ld\n", Index, &offset); |
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| 1143 | for(p=Index; *p; p++) *p = tolow(*p);/* */ |
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| 1144 | (void)strcat(Index, " "); |
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| 1145 | if( strstr(Index, String)!=NULL) |
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| 1146 | { |
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| 1147 | done++; (void)show(offset, help, &close); |
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| 1148 | } |
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| 1149 | Index[0]='\0'; |
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| 1150 | if(close=='x') |
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| 1151 | break; |
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| 1152 | } |
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[9c35ef] | 1153 | if (index != NULL) (void)fclose(index); |
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| 1154 | if (help != NULL) (void)fclose(help); |
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[50cbdc] | 1155 | if(! done) |
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[706c95] | 1156 | { |
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| 1157 | Warn("`%s` not found",String); |
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| 1158 | return HELP_NOT_FOUND; |
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| 1159 | } |
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| 1160 | return HELP_OK; |
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| 1161 | } |
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| 1162 | /*************************************************/ |
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