1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: febase.cc,v 1.3 2005-01-13 15:13:31 Singular Exp $ */ |
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5 | /* |
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6 | * ABSTRACT: i/o system |
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7 | */ |
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8 | |
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9 | /* I need myfread in standalone_parser */ |
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10 | #ifndef STANDALONE_PARSER |
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11 | #include "mod2.h" |
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12 | |
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13 | #include <stdlib.h> |
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14 | #include <stdio.h> |
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15 | #include <mylimits.h> |
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16 | #include <stdarg.h> |
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17 | #include <sys/stat.h> |
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18 | #include <ctype.h> |
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19 | #ifndef __MWERKS__ |
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20 | #include <unistd.h> |
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21 | #endif |
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22 | #ifdef NeXT |
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23 | #include <sys/file.h> |
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24 | #endif |
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25 | #ifdef ix86_Linux_libc5 |
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26 | #undef stdin |
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27 | extern FILE *stdin; |
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28 | #endif |
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29 | |
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30 | #ifdef HAVE_PWD_H |
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31 | #include "pwd.h" |
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32 | #endif |
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33 | |
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34 | #include "febase.h" |
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35 | #include "omalloc.h" |
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36 | #include "dError.h" |
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37 | #include "../Singular/ipshell.h" |
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38 | |
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39 | #define fePutChar(c) fputc((uchar)(c),stdout) |
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40 | /*0 implementation */ |
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41 | |
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42 | char fe_promptstr[] |
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43 | #ifdef macintosh |
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44 | =" \n"; |
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45 | #else |
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46 | =" "; |
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47 | #endif |
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48 | |
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49 | #define INITIAL_PRINT_BUFFER 24*1024 |
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50 | static int feBufferLength=INITIAL_PRINT_BUFFER; |
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51 | static char * feBuffer=(char *)omAlloc(INITIAL_PRINT_BUFFER); |
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52 | |
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53 | int si_echo = 0; |
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54 | int printlevel = 0; |
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55 | #ifndef macintosh |
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56 | int pagelength = 24; |
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57 | #else |
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58 | int pagelength = -1; |
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59 | #endif |
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60 | int colmax = 80; |
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61 | char prompt_char = '>'; /*1 either '>' or '.'*/ |
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62 | extern "C" { |
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63 | BITSET verbose = 1 |
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64 | | Sy_bit(V_REDEFINE) |
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65 | | Sy_bit(V_LOAD_LIB) |
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66 | | Sy_bit(V_SHOW_USE) |
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67 | | Sy_bit(V_PROMPT) |
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68 | /* | Sy_bit(V_DEBUG_MEM) */ |
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69 | ;} |
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70 | BOOLEAN errorreported = FALSE; |
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71 | char * feErrors=NULL; |
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72 | int feErrorsLen=0; |
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73 | BOOLEAN feWarn = TRUE; |
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74 | BOOLEAN feOut = TRUE; |
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75 | |
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76 | #ifdef macintosh |
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77 | static int lines = 0; |
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78 | static int cols = 0; |
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79 | #endif |
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80 | |
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81 | const char feNotImplemented[]="not implemented"; |
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82 | |
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83 | BOOLEAN feProt = FALSE; |
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84 | FILE* feProtFile; |
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85 | BOOLEAN tclmode=FALSE; |
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86 | /* TCL-Protocoll (Singular -x): <char type>:<int length>:<string> \n |
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87 | * E:l:s error |
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88 | * W:l:s warning |
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89 | * N:l:s stdout |
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90 | * Q:0: quit |
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91 | * P:l: prompt > (ring defined) |
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92 | * U:l: prompt > (no ring defined) |
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93 | * P:l: prompt . |
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94 | * R:l:<ring-name> ring change |
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95 | * L:l:<lib name> library loaded |
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96 | * O:l:<list of options(space seperated)> option change |
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97 | * M:l:<mem-usage> output from "option(mem)" |
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98 | */ |
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99 | |
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100 | |
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101 | /************************************************************************** |
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102 | * handling of 'voices' |
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103 | **************************************************************************/ |
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104 | |
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105 | extern int blocknest; /* scaner.l internal */ |
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106 | |
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107 | int yy_noeof=0; // the scanner "state" |
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108 | int yy_blocklineno; // to get the lineno of the block start from scanner |
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109 | Voice *currentVoice = NULL; |
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110 | FILE *feFilePending; /*temp. storage for grammar.y */ |
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111 | |
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112 | static char * BT_name[]={"BT_none","BT_break","BT_proc","BT_example", |
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113 | "BT_file","BT_execute","BT_if","BT_else"}; |
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114 | /*2 |
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115 | * the name of the current 'Voice': the procname (or filename) |
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116 | */ |
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117 | const char * sNoName_fe="_"; |
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118 | const char * VoiceName() |
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119 | { |
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120 | if ((currentVoice!=NULL) |
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121 | && (currentVoice->filename!=NULL)) |
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122 | return currentVoice->filename; |
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123 | return sNoName_fe; |
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124 | } |
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125 | |
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126 | /*2 |
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127 | * the calling chain of Voices |
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128 | */ |
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129 | void VoiceBackTrack() |
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130 | { |
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131 | Voice *p=currentVoice; |
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132 | while (p->prev!=NULL) |
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133 | { |
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134 | p=p->prev; |
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135 | char *s=p->filename; |
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136 | if (s==NULL) |
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137 | PrintS("-- called from ? --\n"); |
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138 | else |
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139 | Print("-- called from %s --\n",s); |
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140 | } |
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141 | } |
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142 | |
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143 | /*2 |
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144 | * init a new voice similiar to the current |
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145 | */ |
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146 | void Voice::Next() |
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147 | { |
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148 | Voice *p=new Voice; |
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149 | // OB: ??? |
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150 | // Hmm... when Singular is used as batch file |
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151 | // then this voice is never freed |
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152 | omMarkAsStaticAddr(p); |
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153 | if (currentVoice != NULL) |
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154 | { |
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155 | currentVoice->curr_lineno=yylineno; |
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156 | currentVoice->next=p; |
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157 | } |
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158 | p->prev=currentVoice; |
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159 | currentVoice=p; |
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160 | //Print("Next:"); |
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161 | } |
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162 | |
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163 | feBufferTypes Voice::Typ() |
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164 | { |
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165 | switch(typ) |
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166 | { |
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167 | case BT_proc: |
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168 | case BT_example: |
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169 | case BT_file: |
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170 | return typ; |
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171 | default: |
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172 | if (prev==NULL) return (feBufferTypes)0; |
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173 | return prev->Typ(); |
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174 | } |
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175 | } |
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176 | |
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177 | /*2 |
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178 | * start the file 'fname' (STDIN is stdin) as a new voice (cf.VFile) |
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179 | * return FALSE on success, TRUE if an error occurs (file cannot be opened) |
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180 | */ |
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181 | BOOLEAN newFile(char *fname,FILE* f) |
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182 | { |
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183 | currentVoice->Next(); |
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184 | //Print(":File%d(%s):%s(%x)\n", |
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185 | // currentVoice->typ,BT_name[currentVoice->typ],fname,currentVoice); |
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186 | currentVoice->filename = omStrDup(fname); |
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187 | omMarkAsStaticAddr(currentVoice->filename); |
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188 | if (strcmp(fname,"STDIN") == 0) |
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189 | { |
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190 | currentVoice->files = stdin; |
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191 | currentVoice->sw = BI_stdin; |
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192 | currentVoice->start_lineno = 1; |
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193 | } |
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194 | else |
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195 | { |
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196 | currentVoice->sw = BI_file; /* needed by exitVoice below */ |
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197 | if (f!=NULL) |
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198 | currentVoice->files = f; |
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199 | else |
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200 | { |
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201 | currentVoice->files = feFopen(fname,"r",NULL,TRUE); |
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202 | if (currentVoice->files==NULL) |
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203 | { |
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204 | exitVoice(); |
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205 | return TRUE; |
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206 | } |
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207 | } |
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208 | currentVoice->start_lineno = 0; |
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209 | } |
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210 | yylineno=currentVoice->start_lineno; |
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211 | //Voice *p=currentVoice; |
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212 | //Print("-----------------\ncurr:"); |
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213 | //do |
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214 | //{ |
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215 | //Print("voice fn:%s\n",p->filename); |
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216 | //p=p->prev; |
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217 | //} |
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218 | //while (p!=NULL); |
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219 | //Print("----------------\n"); |
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220 | return FALSE; |
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221 | } |
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222 | |
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223 | /*2 |
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224 | * exit Buffer of type 'typ': |
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225 | * returns 1 if buffer type could not be found |
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226 | */ |
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227 | BOOLEAN exitBuffer(feBufferTypes typ) |
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228 | { |
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229 | //printf("exitBuffer: %d(%s),(%x)\n", |
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230 | // typ,BT_name[typ], currentVoice); |
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231 | //Voice *p=currentVoice; |
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232 | //Print("-----------------\ncurr:"); |
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233 | //do |
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234 | //{ |
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235 | //Print("voice fn:%s\n",p->filename); |
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236 | //p=p->prev; |
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237 | //} |
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238 | //while (p!=NULL); |
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239 | //Print("----------------\n"); |
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240 | if (typ == BT_break) // valid inside for, while. may skip if, else |
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241 | { |
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242 | /*4 first check for valid buffer type, skip if/else*/ |
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243 | Voice *p=currentVoice; |
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244 | loop |
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245 | { |
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246 | if ((p->typ != BT_if) |
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247 | &&(p->typ != BT_else)) |
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248 | { |
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249 | if (p->typ == BT_break /*typ*/) |
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250 | { |
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251 | while (p != currentVoice) |
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252 | { |
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253 | exitVoice(); |
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254 | } |
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255 | exitVoice(); |
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256 | return FALSE; |
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257 | } |
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258 | else return TRUE; |
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259 | } |
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260 | if (p->prev==NULL) break; |
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261 | p=p->prev; |
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262 | } |
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263 | /*4 break not inside a for/while: return an error*/ |
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264 | if (/*typ*/ BT_break != currentVoice->typ) return 1; |
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265 | return exitVoice(); |
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266 | } |
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267 | |
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268 | if ((typ == BT_proc) |
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269 | || (typ == BT_example)) |
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270 | { |
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271 | Voice *p=currentVoice; |
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272 | loop |
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273 | { |
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274 | if ((p->typ == BT_proc) |
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275 | || (p->typ == BT_example)) |
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276 | { |
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277 | while (p != currentVoice) |
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278 | { |
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279 | exitVoice(); |
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280 | } |
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281 | exitVoice(); |
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282 | return FALSE; |
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283 | } |
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284 | if (p->prev==NULL) break; |
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285 | p=p->prev; |
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286 | } |
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287 | } |
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288 | /*4 return not inside a proc: return an error*/ |
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289 | return TRUE; |
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290 | } |
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291 | |
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292 | /*2 |
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293 | * jump to the beginning of a buffer |
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294 | */ |
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295 | BOOLEAN contBuffer(feBufferTypes typ) |
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296 | { |
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297 | //printf("contBuffer: %d(%s),(%x)\n", |
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298 | // typ,BT_name[typ], currentVoice); |
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299 | if (typ == BT_break) // valid inside for, while. may skip if, else |
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300 | { |
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301 | // first check for valid buffer type |
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302 | Voice *p=currentVoice; |
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303 | loop |
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304 | { |
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305 | if ((p->typ != BT_if) |
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306 | &&(p->typ != BT_else)) |
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307 | { |
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308 | if (p->typ == BT_break /*typ*/) |
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309 | { |
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310 | while (p != currentVoice) |
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311 | { |
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312 | exitVoice(); |
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313 | } |
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314 | yylineno = currentVoice->start_lineno; |
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315 | currentVoice->fptr=0; |
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316 | return FALSE; |
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317 | } |
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318 | else return TRUE; |
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319 | } |
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320 | if (p->prev==NULL) break; |
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321 | p=p->prev; |
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322 | } |
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323 | } |
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324 | return TRUE; |
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325 | } |
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326 | |
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327 | /*2 |
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328 | * leave a voice: kill local variables |
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329 | * setup everything from the previous level |
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330 | * return 1 if leaving the top level, 0 otherwise |
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331 | */ |
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332 | BOOLEAN exitVoice() |
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333 | { |
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334 | //printf("exitVoice: %d(%s),(%x)\n", |
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335 | // currentVoice->typ,BT_name[currentVoice->typ], currentVoice); |
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336 | //{ |
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337 | //Voice *p=currentVoice; |
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338 | //Print("-----------------\ncurr:"); |
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339 | //do |
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340 | //{ |
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341 | //Print("voice fn:%s\n",p->filename); |
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342 | //p=p->prev; |
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343 | //} |
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344 | //while (p!=NULL); |
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345 | //Print("----------------\n"); |
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346 | //} |
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347 | if (currentVoice!=NULL) |
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348 | { |
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349 | if (currentVoice->oldb!=NULL) |
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350 | { |
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351 | myyoldbuffer(currentVoice->oldb); |
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352 | currentVoice->oldb=NULL; |
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353 | } |
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354 | if ((currentVoice->prev==NULL)&&(currentVoice->sw==BI_file)) |
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355 | { |
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356 | currentVoice->prev=feInitStdin(currentVoice); |
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357 | } |
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358 | if (currentVoice->prev!=NULL) |
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359 | { |
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360 | //printf("exitVoice typ %d(%s)\n", |
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361 | // currentVoice->typ,BT_name[currentVoice->typ]); |
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362 | if (currentVoice->typ==BT_if) |
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363 | { |
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364 | currentVoice->prev->ifsw=2; |
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365 | } |
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366 | else |
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367 | { |
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368 | currentVoice->prev->ifsw=0; |
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369 | } |
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370 | if ((currentVoice->sw == BI_file) |
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371 | && (currentVoice->files!=NULL)) |
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372 | { |
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373 | fclose(currentVoice->files); |
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374 | } |
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375 | if (currentVoice->filename!=NULL) |
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376 | { |
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377 | omFree((ADDRESS)currentVoice->filename); |
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378 | currentVoice->filename=NULL; |
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379 | } |
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380 | if (currentVoice->buffer!=NULL) |
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381 | { |
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382 | omFree((ADDRESS)currentVoice->buffer); |
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383 | currentVoice->buffer=NULL; |
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384 | } |
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385 | yylineno=currentVoice->prev->curr_lineno; |
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386 | currentVoice->prev->next=NULL; |
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387 | } |
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388 | Voice *p=currentVoice->prev; |
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389 | delete currentVoice; |
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390 | currentVoice=p; |
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391 | } |
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392 | return currentVoice==NULL; |
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393 | } |
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394 | |
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395 | /*2 |
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396 | * set prompt_char |
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397 | * only called with currentVoice->sw == BI_stdin |
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398 | */ |
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399 | static void feShowPrompt(void) |
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400 | { |
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401 | fe_promptstr[0]=prompt_char; |
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402 | #ifdef macintosh |
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403 | cols = 0; |
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404 | printf(fe_promptstr);mflush(); |
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405 | #endif |
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406 | } |
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407 | |
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408 | /*2 |
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409 | * print echo (si_echo or TRACE), set my_yylinebuf |
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410 | */ |
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411 | static int fePrintEcho(char *anf, char *b) |
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412 | { |
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413 | char *ss=strrchr(anf,'\n'); |
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414 | int len_s; |
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415 | if (ss==NULL) |
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416 | { |
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417 | len_s=strlen(anf); |
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418 | } |
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419 | else |
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420 | { |
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421 | len_s=ss-anf+1; |
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422 | } |
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423 | // my_yylinebuf: |
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424 | int mrc=si_min(len_s,79)-1; |
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425 | strcpy(my_yylinebuf,anf+(len_s-1)-mrc); |
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426 | if (my_yylinebuf[mrc] == '\n') my_yylinebuf[mrc] = '\0'; |
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427 | mrc--; |
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428 | // handle echo: |
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429 | if (((si_echo>myynest) |
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430 | && ((currentVoice->typ==BT_proc) |
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431 | || (currentVoice->typ==BT_example) |
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432 | || (currentVoice->typ==BT_file) |
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433 | || (currentVoice->typ==BT_none) |
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434 | ) |
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435 | && (strncmp(anf,";return();",10)!=0) |
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436 | ) |
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437 | || (traceit&TRACE_SHOW_LINE) |
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438 | || (traceit&TRACE_SHOW_LINE1)) |
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439 | { |
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440 | if (currentVoice->typ!=BT_example) |
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441 | { |
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442 | if (currentVoice->filename==NULL) |
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443 | Print("(none) %3d%c ",yylineno,prompt_char); |
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444 | else |
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445 | Print("%s %3d%c ",currentVoice->filename,yylineno,prompt_char); |
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446 | } |
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447 | #ifdef HAVE_TCL |
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448 | if(tclmode) |
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449 | { |
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450 | PrintTCL('N',len_s,anf); |
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451 | } |
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452 | else |
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453 | #endif |
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454 | { |
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455 | fwrite(anf,1,len_s,stdout); |
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456 | mflush(); |
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457 | } |
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458 | if (traceit&TRACE_SHOW_LINE) |
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459 | { |
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460 | #ifdef HAVE_TCL |
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461 | if(!tclmode) |
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462 | #endif |
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463 | while(fgetc(stdin)!='\n'); |
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464 | } |
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465 | } |
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466 | else if (traceit&TRACE_SHOW_LINENO) |
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467 | { |
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468 | Print("{%d}",yylineno); |
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469 | mflush(); |
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470 | } |
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471 | #ifdef HAVE_SDB |
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472 | if ((blocknest==0) |
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473 | && (currentVoice->pi!=NULL) |
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474 | && (currentVoice->pi->trace_flag!=0)) |
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475 | { |
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476 | sdb(currentVoice, anf, len_s); |
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477 | } |
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478 | #endif |
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479 | prompt_char = '.'; |
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480 | return len_s; |
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481 | } |
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482 | |
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483 | int feReadLine(char* b, int l) |
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484 | { |
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485 | char *s=NULL; |
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486 | int offset = 0; /* will not be used if s==NULL*/ |
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487 | // try to read from the buffer into b, max l chars |
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488 | if (currentVoice!=NULL) |
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489 | { |
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490 | if((currentVoice->buffer!=NULL) |
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491 | && (currentVoice->buffer[currentVoice->fptr]!='\0')) |
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492 | { |
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493 | NewBuff: |
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494 | register int i=0; |
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495 | long startfptr=currentVoice->fptr; |
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496 | long tmp_ptr=currentVoice->fptr; |
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497 | l--; |
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498 | loop |
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499 | { |
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500 | register char c= |
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501 | b[i]=currentVoice->buffer[tmp_ptr/*currentVoice->fptr*/]; |
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502 | i++; |
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503 | if (yy_noeof==noeof_block) |
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504 | { |
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505 | if (c<' ') yylineno++; |
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506 | else if (c=='}') break; |
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507 | } |
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508 | else |
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509 | { |
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510 | if ((c<' ') || |
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511 | (c==';') || |
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512 | (c==')') |
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513 | ) |
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514 | break; |
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515 | } |
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516 | if (i>=l) break; |
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517 | tmp_ptr++;/*currentVoice->fptr++;*/ |
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518 | if(currentVoice->buffer[tmp_ptr/*currentVoice->fptr*/]=='\0') break; |
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519 | } |
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520 | currentVoice->fptr=tmp_ptr; |
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521 | b[i]='\0'; |
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522 | if (currentVoice->sw==BI_buffer) |
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523 | { |
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524 | if (startfptr==0) |
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525 | { |
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526 | char *anf=currentVoice->buffer; |
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527 | char *ss=strchr(anf,'\n'); |
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528 | int len; |
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529 | if (ss==NULL) len=strlen(anf); |
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530 | else len=ss-anf; |
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531 | char *s=(char *)omAlloc(len+2); |
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532 | strncpy(s,anf,len+2); |
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533 | s[len+1]='\0'; |
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534 | fePrintEcho(s,b); |
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535 | omFree((ADDRESS)s); |
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536 | } |
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537 | else if (/*(startfptr>0) &&*/ |
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538 | (currentVoice->buffer[startfptr-1]=='\n')) |
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539 | { |
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540 | char *anf=currentVoice->buffer+startfptr; |
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541 | char *ss=strchr(anf,'\n'); |
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542 | int len; |
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543 | if (ss==NULL) len=strlen(anf); |
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544 | else len=ss-anf; |
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545 | char *s=(char *)omAlloc(len+2); |
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546 | strncpy(s,anf,len+2); |
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547 | s[len+1]='\0'; |
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548 | yylineno++; |
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549 | fePrintEcho(s,b); |
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550 | omFree((ADDRESS)s); |
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551 | } |
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552 | } |
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553 | currentVoice->fptr++; |
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554 | return i; |
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555 | } |
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556 | // no buffer there or e-o-buffer or eoln: |
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557 | if (currentVoice->sw!=BI_buffer) |
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558 | { |
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559 | currentVoice->fptr=0; |
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560 | if (currentVoice->buffer==NULL) |
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561 | { |
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562 | currentVoice->buffer=(char *)omAlloc(4096-sizeof(ADDRESS)); |
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563 | omMarkAsStaticAddr(currentVoice->buffer); |
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564 | } |
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565 | } |
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566 | offset=0; |
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567 | NewRead: |
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568 | yylineno++; |
---|
569 | if (currentVoice->sw==BI_stdin) |
---|
570 | { |
---|
571 | feShowPrompt(); |
---|
572 | s=fe_fgets_stdin(fe_promptstr, |
---|
573 | &(currentVoice->buffer[offset]), |
---|
574 | (4096-1-sizeof(ADDRESS))-offset); |
---|
575 | int i=0; |
---|
576 | if (s!=NULL) |
---|
577 | while((s[i]!='\0') && (i<4096)) {s[i] &= (char)127;i++;} |
---|
578 | } |
---|
579 | else if (currentVoice->sw==BI_file) |
---|
580 | { |
---|
581 | s=fgets(currentVoice->buffer+offset,(4096-1-sizeof(ADDRESS))-offset, |
---|
582 | currentVoice->files); |
---|
583 | } |
---|
584 | //else /* BI_buffer */ s==NULL => return 0 |
---|
585 | // done by the default return |
---|
586 | } |
---|
587 | if (s!=NULL) |
---|
588 | { |
---|
589 | // handle prot: |
---|
590 | if (feProt&PROT_I) |
---|
591 | { |
---|
592 | fputs(s,feProtFile); |
---|
593 | } |
---|
594 | int rc=fePrintEcho(s,b)+1; |
---|
595 | //s[strlen(s)+1]='\0'; add an second \0 at the end of the string |
---|
596 | s[rc]='\0'; |
---|
597 | // handel \\ : |
---|
598 | rc-=3; |
---|
599 | if ((s[rc]=='\\')&&(currentVoice->sw!=BI_buffer)) |
---|
600 | { |
---|
601 | s[rc]='\0'; |
---|
602 | offset+=rc; |
---|
603 | if (offset<(int)omSizeOfAddr(currentVoice->buffer)) goto NewRead; |
---|
604 | } |
---|
605 | goto NewBuff; |
---|
606 | } |
---|
607 | /* else if (s==NULL) */ |
---|
608 | { |
---|
609 | char *err; |
---|
610 | switch(yy_noeof) |
---|
611 | { |
---|
612 | case noeof_brace: |
---|
613 | case noeof_block: |
---|
614 | err="{...}"; |
---|
615 | break; |
---|
616 | case noeof_asstring: |
---|
617 | err="till `.`"; |
---|
618 | break; |
---|
619 | case noeof_string: |
---|
620 | err="string"; |
---|
621 | break; |
---|
622 | case noeof_bracket: |
---|
623 | err="(...)"; |
---|
624 | break; |
---|
625 | case noeof_procname: |
---|
626 | err="proc"; |
---|
627 | break; |
---|
628 | case noeof_comment: |
---|
629 | err="/*...*/"; |
---|
630 | break; |
---|
631 | default: |
---|
632 | return 0; |
---|
633 | } |
---|
634 | Werror("premature end of file while reading %s",err); |
---|
635 | return 0; |
---|
636 | } |
---|
637 | } |
---|
638 | |
---|
639 | #ifdef __MWERKS__ |
---|
640 | #ifdef __cplusplus |
---|
641 | extern "C" { |
---|
642 | #endif |
---|
643 | #ifdef macintosh |
---|
644 | int isatty(int filedes); |
---|
645 | #else |
---|
646 | int _isatty(int filedes); |
---|
647 | #define isatty _isatty |
---|
648 | #endif /* macintosh */ |
---|
649 | #ifdef __cplusplus |
---|
650 | } |
---|
651 | #endif |
---|
652 | #endif |
---|
653 | /*2 |
---|
654 | * init all data structures |
---|
655 | */ |
---|
656 | #ifndef STDIN_FILENO |
---|
657 | #define STDIN_FILENO 0 |
---|
658 | #endif |
---|
659 | Voice * feInitStdin(Voice *pp) |
---|
660 | { |
---|
661 | Voice *p = new Voice; |
---|
662 | p->files = stdin; |
---|
663 | #ifdef HAVE_TCL |
---|
664 | p->sw = (tclmode || isatty(STDIN_FILENO)) ? BI_stdin : BI_file; |
---|
665 | #else |
---|
666 | p->sw = (isatty(STDIN_FILENO)) ? BI_stdin : BI_file; |
---|
667 | #endif |
---|
668 | if ((pp!=NULL) && (pp->files==stdin)) |
---|
669 | { |
---|
670 | p->files=freopen("/dev/tty","r",stdin); |
---|
671 | //stdin=p->files; |
---|
672 | p->sw = BI_stdin; |
---|
673 | } |
---|
674 | p->filename = omStrDup("STDIN"); |
---|
675 | p->start_lineno = 1; |
---|
676 | omMarkAsStaticAddr(p); |
---|
677 | omMarkAsStaticAddr(p->filename); |
---|
678 | return p; |
---|
679 | } |
---|
680 | /***************************************************************** |
---|
681 | * |
---|
682 | * File handling |
---|
683 | * |
---|
684 | *****************************************************************/ |
---|
685 | |
---|
686 | FILE * feFopen(char *path, char *mode, char *where,int useWerror, |
---|
687 | int path_only) |
---|
688 | { |
---|
689 | char longpath[MAXPATHLEN]; |
---|
690 | if (path[0]=='~') |
---|
691 | { |
---|
692 | if (path[1] == DIR_SEP) |
---|
693 | { |
---|
694 | char* home = getenv("HOME"); |
---|
695 | #ifdef ix86_Win |
---|
696 | if ((home==NULL)||(!access(home,X_OK))) |
---|
697 | home = getenv("SINGHOME"); |
---|
698 | #endif |
---|
699 | if (home != NULL) |
---|
700 | { |
---|
701 | strcpy(longpath, home); |
---|
702 | strcat(longpath, &(path[1])); |
---|
703 | path = longpath; |
---|
704 | } |
---|
705 | } |
---|
706 | #if defined(HAVE_PWD_H) && defined(HAVE_GETPWNAM) |
---|
707 | else |
---|
708 | { |
---|
709 | char* dir_sep; |
---|
710 | struct passwd *pw_entry; |
---|
711 | strcpy (longpath, path); |
---|
712 | dir_sep = strchr(longpath, DIR_SEP); |
---|
713 | *dir_sep = '\0'; |
---|
714 | pw_entry = getpwnam(&longpath[1]); |
---|
715 | if (pw_entry != NULL) |
---|
716 | { |
---|
717 | strcpy(longpath, pw_entry->pw_dir); |
---|
718 | dir_sep = strchr(path, DIR_SEP); |
---|
719 | strcat(longpath, dir_sep); |
---|
720 | path = longpath; |
---|
721 | } |
---|
722 | } |
---|
723 | #endif |
---|
724 | } |
---|
725 | FILE * f=NULL; |
---|
726 | if (! path_only) |
---|
727 | { |
---|
728 | struct stat statbuf; |
---|
729 | if ((stat(path,&statbuf)==0) |
---|
730 | && (S_ISREG(statbuf.st_mode))) |
---|
731 | f = myfopen(path,mode); |
---|
732 | } |
---|
733 | if (where!=NULL) strcpy(where,path); |
---|
734 | if ((*mode=='r') && |
---|
735 | (path[0]!=DIR_SEP) && |
---|
736 | ! (path[0] == '.' && path[1] == DIR_SEP) && |
---|
737 | (f==NULL)) |
---|
738 | { |
---|
739 | char found = 0; |
---|
740 | char* spath = feResource('s'); |
---|
741 | char *s; |
---|
742 | |
---|
743 | if (where==NULL) s=(char *)omAlloc(250); |
---|
744 | else s=where; |
---|
745 | |
---|
746 | if (spath!=NULL) |
---|
747 | { |
---|
748 | char *p,*q; |
---|
749 | p = spath; |
---|
750 | while( (q=strchr(p, fePathSep)) != NULL) |
---|
751 | { |
---|
752 | *q = '\0'; |
---|
753 | strcpy(s,p); |
---|
754 | *q = fePathSep; |
---|
755 | strcat(s, DIR_SEPP); |
---|
756 | strcat(s, path); |
---|
757 | #ifndef macintosh |
---|
758 | if(!access(s, R_OK)) { found++; break; } |
---|
759 | #else |
---|
760 | f=fopen(s,mode); /* do not need myfopen: we test only the access */ |
---|
761 | if (f!=NULL) { found++; fclose(f); break; } |
---|
762 | #endif |
---|
763 | p = q+1; |
---|
764 | } |
---|
765 | if(!found) |
---|
766 | { |
---|
767 | strcpy(s,p); |
---|
768 | strcat(s, DIR_SEPP); |
---|
769 | strcat(s, path); |
---|
770 | } |
---|
771 | f=myfopen(s,mode); |
---|
772 | if (f!=NULL) |
---|
773 | { |
---|
774 | if (where==NULL) omFree((ADDRESS)s); |
---|
775 | return f; |
---|
776 | } |
---|
777 | } |
---|
778 | else |
---|
779 | { |
---|
780 | if (where!=NULL) strcpy(s/*where*/,path); |
---|
781 | f=myfopen(path,mode); |
---|
782 | } |
---|
783 | if (where==NULL) omFree((ADDRESS)s); |
---|
784 | } |
---|
785 | if ((f==NULL)&&(useWerror)) |
---|
786 | Werror("cannot open `%s`",path); |
---|
787 | return f; |
---|
788 | } |
---|
789 | |
---|
790 | static char * feBufferStart; |
---|
791 | /* only used in StringSet(S)/StringAppend(S)*/ |
---|
792 | char * StringAppend(char *fmt, ...) |
---|
793 | { |
---|
794 | va_list ap; |
---|
795 | char *s = feBufferStart; /*feBuffer + strlen(feBuffer);*/ |
---|
796 | int more, vs; |
---|
797 | va_start(ap, fmt); |
---|
798 | if ((more=feBufferStart-feBuffer+strlen(fmt)+100)>feBufferLength) |
---|
799 | { |
---|
800 | more = ((more + (4*1024-1))/(4*1024))*(4*1024); |
---|
801 | int l=s-feBuffer; |
---|
802 | feBuffer=(char *)omReallocSize((ADDRESS)feBuffer,feBufferLength, |
---|
803 | more); |
---|
804 | omMarkAsStaticAddr(feBuffer); |
---|
805 | feBufferLength=more; |
---|
806 | s=feBuffer+l; |
---|
807 | #ifndef BSD_SPRINTF |
---|
808 | feBufferStart=s; |
---|
809 | #endif |
---|
810 | } |
---|
811 | #ifdef BSD_SPRINTF |
---|
812 | vsprintf(s, fmt, ap); |
---|
813 | while (*s!='\0') s++; |
---|
814 | feBufferStart =s; |
---|
815 | #else |
---|
816 | #ifdef HAVE_VSNPRINTF |
---|
817 | vs = vsnprintf(s, feBufferLength - (feBufferStart - feBuffer), fmt, ap); |
---|
818 | if (vs == -1) |
---|
819 | { |
---|
820 | assume(0); |
---|
821 | feBufferStart = feBuffer + feBufferLength -1; |
---|
822 | } |
---|
823 | else |
---|
824 | { |
---|
825 | feBufferStart += vs; |
---|
826 | } |
---|
827 | #else |
---|
828 | feBufferStart += vsprintf(s, fmt, ap); |
---|
829 | #endif |
---|
830 | #endif |
---|
831 | omCheckAddrSize(feBuffer, feBufferLength); |
---|
832 | va_end(ap); |
---|
833 | return feBuffer; |
---|
834 | } |
---|
835 | |
---|
836 | char * StringAppendS(char *st) |
---|
837 | { |
---|
838 | /* feBufferStart is feBuffer + strlen(feBuffer);*/ |
---|
839 | int more,l; |
---|
840 | int ll=feBufferStart-feBuffer; |
---|
841 | if ((more=ll+2+(l=strlen(st)))>feBufferLength) |
---|
842 | { |
---|
843 | more = ((more + (4*1024-1))/(4*1024))*(4*1024); |
---|
844 | feBuffer=(char *)omReallocSize((ADDRESS)feBuffer,feBufferLength, |
---|
845 | more); |
---|
846 | feBufferLength=more; |
---|
847 | feBufferStart=feBuffer+ll; |
---|
848 | } |
---|
849 | strcat(feBufferStart, st); |
---|
850 | feBufferStart +=l; |
---|
851 | return feBuffer; |
---|
852 | } |
---|
853 | |
---|
854 | char * StringSetS(char *st) |
---|
855 | { |
---|
856 | int more,l; |
---|
857 | if ((l=strlen(st))>feBufferLength) |
---|
858 | { |
---|
859 | more = ((l + (4*1024-1))/(4*1024))*(4*1024); |
---|
860 | feBuffer=(char *)omReallocSize((ADDRESS)feBuffer,feBufferLength, |
---|
861 | more); |
---|
862 | feBufferLength=more; |
---|
863 | } |
---|
864 | strcpy(feBuffer,st); |
---|
865 | feBufferStart=feBuffer+l; |
---|
866 | return feBuffer; |
---|
867 | } |
---|
868 | |
---|
869 | #ifndef __MWERKS__ |
---|
870 | #ifdef HAVE_TCL |
---|
871 | extern "C" { |
---|
872 | void PrintTCLS(const char c, const char *s) |
---|
873 | { |
---|
874 | int l=strlen(s); |
---|
875 | if (l>0) PrintTCL(c,l,s); |
---|
876 | } |
---|
877 | } |
---|
878 | #endif |
---|
879 | #endif |
---|
880 | |
---|
881 | extern "C" { |
---|
882 | void WerrorS(const char *s) |
---|
883 | { |
---|
884 | #ifdef HAVE_MPSR |
---|
885 | if (fe_fgets_stdin==fe_fgets_dummy) |
---|
886 | { |
---|
887 | if (feErrors==NULL) |
---|
888 | { |
---|
889 | feErrors=(char *)omAlloc(256); |
---|
890 | feErrorsLen=256; |
---|
891 | *feErrors = '\0'; |
---|
892 | } |
---|
893 | else |
---|
894 | { |
---|
895 | if (((int)(strlen((char *)s)+ 20 +strlen(feErrors)))>=feErrorsLen) |
---|
896 | { |
---|
897 | feErrors=(char *)omReallocSize(feErrors,feErrorsLen,feErrorsLen+256); |
---|
898 | feErrorsLen+=256; |
---|
899 | } |
---|
900 | } |
---|
901 | strcat(feErrors, "Singular error: "); |
---|
902 | strcat(feErrors, (char *)s); |
---|
903 | } |
---|
904 | else |
---|
905 | #endif |
---|
906 | { |
---|
907 | #ifdef HAVE_TCL |
---|
908 | if (tclmode) |
---|
909 | { |
---|
910 | PrintTCLS('E',(char *)s); |
---|
911 | PrintTCLS('E',"\n"); |
---|
912 | } |
---|
913 | else |
---|
914 | #endif |
---|
915 | { |
---|
916 | fwrite(" ? ",1,5,stderr); |
---|
917 | fwrite((char *)s,1,strlen((char *)s),stderr); |
---|
918 | fwrite("\n",1,1,stderr); |
---|
919 | fflush(stderr); |
---|
920 | if (feProt&PROT_O) |
---|
921 | { |
---|
922 | fwrite(" ? ",1,5,feProtFile); |
---|
923 | fwrite((char *)s,1,strlen((char *)s),feProtFile); |
---|
924 | fwrite("\n",1,1,feProtFile); |
---|
925 | } |
---|
926 | } |
---|
927 | } |
---|
928 | errorreported = TRUE; |
---|
929 | } |
---|
930 | |
---|
931 | void Werror(char *fmt, ...) |
---|
932 | { |
---|
933 | va_list ap; |
---|
934 | va_start(ap, fmt); |
---|
935 | char *s=(char *)omAlloc(256); |
---|
936 | vsprintf(s, fmt, ap); |
---|
937 | WerrorS(s); |
---|
938 | omFreeSize(s,256); |
---|
939 | va_end(ap); |
---|
940 | } |
---|
941 | |
---|
942 | void WarnS(const char *s) |
---|
943 | { |
---|
944 | #define warn_str "// ** " |
---|
945 | #ifdef HAVE_TCL |
---|
946 | if (tclmode) |
---|
947 | { |
---|
948 | PrintTCLS('W',warn_str); |
---|
949 | PrintTCLS('W',s); |
---|
950 | PrintTCLS('W',"\n"); |
---|
951 | } |
---|
952 | else |
---|
953 | #endif |
---|
954 | if (feWarn) /* ignore warnings if option --no-warn was given */ |
---|
955 | { |
---|
956 | fwrite(warn_str,1,6,stdout); |
---|
957 | fwrite(s,1,strlen(s),stdout); |
---|
958 | fwrite("\n",1,1,stdout); |
---|
959 | fflush(stdout); |
---|
960 | if (feProt&PROT_O) |
---|
961 | { |
---|
962 | fwrite(warn_str,1,6,feProtFile); |
---|
963 | fwrite(s,1,strlen(s),feProtFile); |
---|
964 | fwrite("\n",1,1,feProtFile); |
---|
965 | } |
---|
966 | } |
---|
967 | } |
---|
968 | } /* end extern "C" */ |
---|
969 | |
---|
970 | void Warn(const char *fmt, ...) |
---|
971 | { |
---|
972 | va_list ap; |
---|
973 | va_start(ap, fmt); |
---|
974 | char *s=(char *)omAlloc(256); |
---|
975 | vsprintf(s, fmt, ap); |
---|
976 | WarnS(s); |
---|
977 | omFreeSize(s,256); |
---|
978 | va_end(ap); |
---|
979 | } |
---|
980 | |
---|
981 | |
---|
982 | #ifdef macintosh |
---|
983 | static int lines = 0; |
---|
984 | static int cols = 0; |
---|
985 | |
---|
986 | void mwrite(uchar c) |
---|
987 | { |
---|
988 | if (c == '\n') |
---|
989 | { |
---|
990 | cols = 0; |
---|
991 | if (lines == pagelength) |
---|
992 | { |
---|
993 | lines = 0; |
---|
994 | fputs("pause>\n",stderr); |
---|
995 | uchar c = fgetc(stdin); |
---|
996 | } |
---|
997 | else |
---|
998 | { |
---|
999 | lines++; |
---|
1000 | fePutChar(c); |
---|
1001 | } |
---|
1002 | } |
---|
1003 | else |
---|
1004 | { |
---|
1005 | fePutChar(c); |
---|
1006 | cols++; |
---|
1007 | if (cols == colmax) |
---|
1008 | { |
---|
1009 | // cols = 0; //will be done by mwrite('\n'); |
---|
1010 | mwrite('\n'); |
---|
1011 | } |
---|
1012 | } |
---|
1013 | } |
---|
1014 | #endif |
---|
1015 | |
---|
1016 | // some routines which redirect the output of print to a string |
---|
1017 | static char* sprint = NULL; |
---|
1018 | void SPrintStart() |
---|
1019 | { |
---|
1020 | sprint = omStrDup(""); |
---|
1021 | } |
---|
1022 | |
---|
1023 | static void SPrintS(char* s) |
---|
1024 | { |
---|
1025 | omCheckAddr(sprint); |
---|
1026 | if (s == NULL) return; |
---|
1027 | int ls = strlen(s); |
---|
1028 | if (ls == 0) return; |
---|
1029 | |
---|
1030 | char* ns; |
---|
1031 | int l = strlen(sprint); |
---|
1032 | ns = (char*) omAlloc((l + ls + 1)*sizeof(char)); |
---|
1033 | if (l > 0) strcpy(ns, sprint); |
---|
1034 | |
---|
1035 | strcpy(&(ns[l]), s); |
---|
1036 | omFree(sprint); |
---|
1037 | sprint = ns; |
---|
1038 | omCheckAddr(sprint); |
---|
1039 | } |
---|
1040 | |
---|
1041 | char* SPrintEnd() |
---|
1042 | { |
---|
1043 | char* ns = sprint; |
---|
1044 | sprint = NULL; |
---|
1045 | omCheckAddr(ns); |
---|
1046 | return ns; |
---|
1047 | } |
---|
1048 | |
---|
1049 | // Print routines |
---|
1050 | extern "C" { |
---|
1051 | void PrintS(char *s) |
---|
1052 | { |
---|
1053 | if (sprint != NULL) |
---|
1054 | { |
---|
1055 | SPrintS(s); |
---|
1056 | return; |
---|
1057 | } |
---|
1058 | |
---|
1059 | if (feOut) /* do not print when option --no-out was given */ |
---|
1060 | { |
---|
1061 | |
---|
1062 | #ifdef macintosh |
---|
1063 | char c; |
---|
1064 | while ('\0' != (c = *s++)) |
---|
1065 | { |
---|
1066 | mwrite(c); |
---|
1067 | } |
---|
1068 | #else |
---|
1069 | #ifdef HAVE_TCL |
---|
1070 | if (tclmode) |
---|
1071 | { |
---|
1072 | PrintTCLS('N',s); |
---|
1073 | } |
---|
1074 | else |
---|
1075 | #endif |
---|
1076 | { |
---|
1077 | fwrite(s,1,strlen(s),stdout); |
---|
1078 | fflush(stdout); |
---|
1079 | if (feProt&PROT_O) |
---|
1080 | { |
---|
1081 | fwrite(s,1,strlen(s),feProtFile); |
---|
1082 | } |
---|
1083 | } |
---|
1084 | #endif |
---|
1085 | } |
---|
1086 | } |
---|
1087 | |
---|
1088 | void PrintLn() |
---|
1089 | { |
---|
1090 | PrintS("\n"); |
---|
1091 | } |
---|
1092 | |
---|
1093 | void Print(char *fmt, ...) |
---|
1094 | { |
---|
1095 | if (sprint != NULL) |
---|
1096 | { |
---|
1097 | int ls = strlen(fmt); |
---|
1098 | va_list ap; |
---|
1099 | va_start(ap, fmt); |
---|
1100 | omCheckAddr(sprint); |
---|
1101 | if (fmt != NULL && ls > 0) |
---|
1102 | { |
---|
1103 | char* ns; |
---|
1104 | int l = strlen(sprint); |
---|
1105 | ns = (char*) omAlloc(sizeof(char)*(ls + l + 256)); |
---|
1106 | if (l > 0) strcpy(ns, sprint); |
---|
1107 | |
---|
1108 | #ifdef HAVE_VSNPRINTF |
---|
1109 | l = vsnprintf(&(ns[l]), ls+255, fmt, ap); |
---|
1110 | assume(l != -1); |
---|
1111 | #else |
---|
1112 | vsprintf(&(ns[l]), fmt, ap); |
---|
1113 | #endif |
---|
1114 | omCheckAddr(ns); |
---|
1115 | omFree(sprint); |
---|
1116 | sprint = ns; |
---|
1117 | } |
---|
1118 | va_end(ap); |
---|
1119 | return; |
---|
1120 | } |
---|
1121 | if (feOut) |
---|
1122 | { |
---|
1123 | va_list ap; |
---|
1124 | va_start(ap, fmt); |
---|
1125 | #ifdef HAVE_TCL |
---|
1126 | if(tclmode) |
---|
1127 | #endif |
---|
1128 | #if (defined(HAVE_TCL) || defined(macintosh)) |
---|
1129 | { |
---|
1130 | char *s=(char *)omAlloc(strlen(fmt)+256); |
---|
1131 | vsprintf(s,fmt, ap); |
---|
1132 | #ifdef HAVE_TCL |
---|
1133 | PrintTCLS('N',s); |
---|
1134 | #endif |
---|
1135 | #ifdef macintosh |
---|
1136 | char c; |
---|
1137 | while ('\0' != (c = *s++)) |
---|
1138 | { |
---|
1139 | mwrite(c); |
---|
1140 | } |
---|
1141 | if (feProt&PROT_O) |
---|
1142 | { |
---|
1143 | vfprintf(feProtFile,fmt,ap); |
---|
1144 | } |
---|
1145 | #endif |
---|
1146 | } |
---|
1147 | #endif |
---|
1148 | #if !defined(macintosh) || defined(HAVE_TCL) |
---|
1149 | #ifdef HAVE_TCL |
---|
1150 | else |
---|
1151 | #endif |
---|
1152 | { |
---|
1153 | vfprintf(stdout, fmt, ap); |
---|
1154 | fflush(stdout); |
---|
1155 | if (feProt&PROT_O) |
---|
1156 | { |
---|
1157 | vfprintf(feProtFile,fmt,ap); |
---|
1158 | } |
---|
1159 | } |
---|
1160 | #endif |
---|
1161 | va_end(ap); |
---|
1162 | } |
---|
1163 | } |
---|
1164 | |
---|
1165 | /* end extern "C" */ |
---|
1166 | } |
---|
1167 | |
---|
1168 | void monitor(char* s, int mode) |
---|
1169 | { |
---|
1170 | if (feProt) |
---|
1171 | { |
---|
1172 | fclose(feProtFile); |
---|
1173 | feProt = 0; |
---|
1174 | } |
---|
1175 | if ((s!=NULL) && (*s!='\0')) |
---|
1176 | { |
---|
1177 | feProtFile = myfopen(s,"w"); |
---|
1178 | if (feProtFile==NULL) |
---|
1179 | { |
---|
1180 | Werror("cannot open %s",s); |
---|
1181 | feProt=0; |
---|
1182 | } |
---|
1183 | else |
---|
1184 | feProt = (BOOLEAN)mode; |
---|
1185 | } |
---|
1186 | } |
---|
1187 | |
---|
1188 | |
---|
1189 | char* eati(char *s, int *i) |
---|
1190 | { |
---|
1191 | int l=0; |
---|
1192 | |
---|
1193 | if (*s >= '0' && *s <= '9') |
---|
1194 | { |
---|
1195 | *i = 0; |
---|
1196 | while (*s >= '0' && *s <= '9') |
---|
1197 | { |
---|
1198 | *i *= 10; |
---|
1199 | *i += *s++ - '0'; |
---|
1200 | l++; |
---|
1201 | if ((l>=MAX_INT_LEN)||((*i) <0)) |
---|
1202 | { |
---|
1203 | s-=l; |
---|
1204 | Werror("`%s` greater than %d(max. integer representation)", |
---|
1205 | s,MAX_INT_VAL); |
---|
1206 | return s; |
---|
1207 | } |
---|
1208 | } |
---|
1209 | } |
---|
1210 | else *i = 1; |
---|
1211 | return s; |
---|
1212 | } |
---|
1213 | #else /* ! STANDALONE_PARSER */ |
---|
1214 | #include <stdio.h> |
---|
1215 | |
---|
1216 | #endif |
---|
1217 | |
---|
1218 | #ifdef ix86_Win |
---|
1219 | // Make sure that mode contains binary option |
---|
1220 | FILE* myfopen(char *path, char *mode) |
---|
1221 | { |
---|
1222 | char mmode[4]; |
---|
1223 | int i; |
---|
1224 | int done = 0; |
---|
1225 | |
---|
1226 | for (i=0;;i++) |
---|
1227 | { |
---|
1228 | mmode[i] = mode[i]; |
---|
1229 | if (mode[i] == '\0') break; |
---|
1230 | if (mode[i] == 'b') done = 1; |
---|
1231 | } |
---|
1232 | |
---|
1233 | if (! done) |
---|
1234 | { |
---|
1235 | mmode[i] = 'b'; |
---|
1236 | mmode[i+1] = '\0'; |
---|
1237 | } |
---|
1238 | return fopen(path, mmode); |
---|
1239 | } |
---|
1240 | #endif |
---|
1241 | // replace "\r\n" by " \n" and "\r" by "\n" |
---|
1242 | |
---|
1243 | size_t myfread(void *ptr, size_t size, size_t nmemb, FILE *stream) |
---|
1244 | { |
---|
1245 | size_t got = fread(ptr, size, nmemb, stream) * size; |
---|
1246 | size_t i; |
---|
1247 | |
---|
1248 | for (i=0; i<got; i++) |
---|
1249 | { |
---|
1250 | if ( ((char*) ptr)[i] == '\r') |
---|
1251 | { |
---|
1252 | if (i+1 < got && ((char*) ptr)[i+1] == '\n') |
---|
1253 | ((char*) ptr)[i] = ' '; |
---|
1254 | else |
---|
1255 | ((char*) ptr)[i] = '\n'; |
---|
1256 | } |
---|
1257 | } |
---|
1258 | return got; |
---|
1259 | } |
---|