[88ece17] | 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: i/o system |
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| 6 | */ |
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[fb1675] | 7 | #include "kernel/mod2.h" |
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[88ece17] | 8 | |
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| 9 | /* I need myfread in standalone_parser */ |
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| 10 | #ifndef STANDALONE_PARSER |
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[fb1675] | 11 | #include "omalloc/omalloc.h" |
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| 12 | #include "misc/options.h" |
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| 13 | #include "reporter/reporter.h" |
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| 14 | #include "kernel/oswrapper/feread.h" |
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| 15 | #include "Singular/fevoices.h" |
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| 16 | #include "Singular/subexpr.h" |
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| 17 | #include "Singular/ipshell.h" |
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| 18 | #include "Singular/sdb.h" |
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[88ece17] | 19 | |
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[fb1675] | 20 | #include "misc/mylimits.h" |
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[88ece17] | 21 | #include <unistd.h> |
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| 22 | |
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| 23 | #ifdef HAVE_PWD_H |
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| 24 | #include <pwd.h> |
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| 25 | #endif |
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| 26 | |
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| 27 | #define fePutChar(c) fputc((unsigned char)(c),stdout) |
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| 28 | /*0 implementation */ |
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| 29 | |
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| 30 | |
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[a3f0fea] | 31 | VAR char fe_promptstr[] =" "; |
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| 32 | VAR FILE *File_Profiling=NULL; |
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[7a25384] | 33 | VAR FILE *File_Log=NULL; |
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[31891c] | 34 | VAR BOOLEAN File_Log_written=FALSE; |
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[6d9d85] | 35 | |
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| 36 | // line buffer for reading: |
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| 37 | // minimal value for MAX_FILE_BUFFER: 4*4096 - see Tst/Long/gcd0_l.tst |
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| 38 | // this is an upper limit for the size of monomials/numbers read via the interpreter |
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| 39 | #define MAX_FILE_BUFFER 4*4096 |
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| 40 | |
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[88ece17] | 41 | /************************************************************************** |
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| 42 | * handling of 'voices' |
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| 43 | **************************************************************************/ |
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| 44 | |
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[a3f0fea] | 45 | EXTERN_VAR int blocknest; /* scaner.l internal */ |
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[88ece17] | 46 | |
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[a3f0fea] | 47 | VAR int yy_noeof=0; // the scanner "state" |
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| 48 | VAR int yy_blocklineno; // to get the lineno of the block start from scanner |
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| 49 | VAR Voice *currentVoice = NULL; |
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[8d033e2] | 50 | // FILE *feFilePending; /*temp. storage for grammar.y */ |
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[88ece17] | 51 | |
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| 52 | //static const char * BT_name[]={"BT_none","BT_break","BT_proc","BT_example", |
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| 53 | // "BT_file","BT_execute","BT_if","BT_else"}; |
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| 54 | /*2 |
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| 55 | * the name of the current 'Voice': the procname (or filename) |
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| 56 | */ |
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[bb22f4d] | 57 | const char sNoName_fe[]="_"; |
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[88ece17] | 58 | const char * VoiceName() |
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| 59 | { |
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| 60 | if ((currentVoice!=NULL) |
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| 61 | && (currentVoice->filename!=NULL)) |
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| 62 | return currentVoice->filename; |
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| 63 | return sNoName_fe; |
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| 64 | } |
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| 65 | |
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[d7df93] | 66 | int VoiceLine() |
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| 67 | { |
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| 68 | if ((currentVoice!=NULL) |
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| 69 | && (currentVoice->curr_lineno>=0)) |
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| 70 | return currentVoice->curr_lineno; |
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| 71 | return -1; |
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| 72 | } |
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| 73 | |
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[88ece17] | 74 | /*2 |
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| 75 | * the calling chain of Voices |
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| 76 | */ |
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| 77 | void VoiceBackTrack() |
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| 78 | { |
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| 79 | Voice *p=currentVoice; |
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| 80 | while (p->prev!=NULL) |
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| 81 | { |
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| 82 | p=p->prev; |
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| 83 | char *s=p->filename; |
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| 84 | if (s==NULL) |
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| 85 | PrintS("-- called from ? --\n"); |
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| 86 | else |
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| 87 | Print("-- called from %s --\n",s); |
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| 88 | } |
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| 89 | } |
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| 90 | |
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| 91 | /*2 |
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[88615db] | 92 | * init a new voice similar to the current |
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[88ece17] | 93 | */ |
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| 94 | void Voice::Next() |
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| 95 | { |
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| 96 | Voice *p=new Voice; |
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| 97 | // OB: ??? |
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| 98 | // Hmm... when Singular is used as batch file |
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| 99 | // then this voice is never freed |
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| 100 | omMarkAsStaticAddr(p); |
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| 101 | if (currentVoice != NULL) |
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| 102 | { |
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| 103 | currentVoice->curr_lineno=yylineno; |
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| 104 | currentVoice->next=p; |
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| 105 | } |
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| 106 | p->prev=currentVoice; |
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| 107 | currentVoice=p; |
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[f9b0bd] | 108 | //PrintS("Next:"); |
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[88ece17] | 109 | } |
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| 110 | |
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| 111 | feBufferTypes Voice::Typ() |
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| 112 | { |
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| 113 | switch(typ) |
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| 114 | { |
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| 115 | case BT_proc: |
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| 116 | case BT_example: |
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| 117 | case BT_file: |
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| 118 | return typ; |
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| 119 | default: |
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| 120 | if (prev==NULL) return (feBufferTypes)0; |
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| 121 | return prev->Typ(); |
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| 122 | } |
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| 123 | } |
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| 124 | |
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| 125 | /*2 |
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| 126 | * start the file 'fname' (STDIN is stdin) as a new voice (cf.VFile) |
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| 127 | * return FALSE on success, TRUE if an error occurs (file cannot be opened) |
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| 128 | */ |
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[a0d569] | 129 | BOOLEAN newFile(char *fname) |
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[88ece17] | 130 | { |
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| 131 | currentVoice->Next(); |
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| 132 | //Print(":File%d(%s):%s(%x)\n", |
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| 133 | // currentVoice->typ,BT_name[currentVoice->typ],fname,currentVoice); |
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| 134 | currentVoice->filename = omStrDup(fname); |
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| 135 | omMarkAsStaticAddr(currentVoice->filename); |
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| 136 | if (strcmp(fname,"STDIN") == 0) |
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| 137 | { |
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| 138 | currentVoice->files = stdin; |
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| 139 | currentVoice->sw = BI_stdin; |
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| 140 | currentVoice->start_lineno = 1; |
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| 141 | } |
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| 142 | else |
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| 143 | { |
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| 144 | currentVoice->sw = BI_file; /* needed by exitVoice below */ |
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[a0d569] | 145 | currentVoice->files = feFopen(fname,"r",NULL,TRUE); |
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| 146 | if (currentVoice->files==NULL) |
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[88ece17] | 147 | { |
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[a0d569] | 148 | exitVoice(); |
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| 149 | return TRUE; |
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[88ece17] | 150 | } |
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| 151 | currentVoice->start_lineno = 0; |
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| 152 | } |
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| 153 | yylineno=currentVoice->start_lineno; |
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| 154 | //Voice *p=currentVoice; |
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[f9b0bd] | 155 | //PrintS("-----------------\ncurr:"); |
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[88ece17] | 156 | //do |
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| 157 | //{ |
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| 158 | //Print("voice fn:%s\n",p->filename); |
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| 159 | //p=p->prev; |
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| 160 | //} |
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| 161 | //while (p!=NULL); |
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[f9b0bd] | 162 | //PrintS("----------------\n"); |
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[88ece17] | 163 | return FALSE; |
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| 164 | } |
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| 165 | |
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| 166 | void newBuffer(char* s, feBufferTypes t, procinfo* pi, int lineno) |
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| 167 | { |
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| 168 | currentVoice->Next(); |
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| 169 | //Print(":Buffer%d(%s):%s(%x)\n", |
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| 170 | // t,BT_name[t],pname,currentVoice); |
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| 171 | if (pi!=NULL) |
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| 172 | { |
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| 173 | long l=strlen(pi->procname); |
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| 174 | if (pi->libname!=NULL) l+=strlen(pi->libname); |
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| 175 | currentVoice->filename = (char *)omAlloc(l+3); |
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| 176 | *currentVoice->filename='\0'; |
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| 177 | if (pi->libname!=NULL) strcat(currentVoice->filename,pi->libname); |
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| 178 | strcat(currentVoice->filename,"::"); |
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| 179 | strcat(currentVoice->filename,pi->procname); |
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| 180 | currentVoice->pi = pi; |
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| 181 | } |
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| 182 | else |
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| 183 | { |
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[c46173] | 184 | if(currentVoice->prev!=NULL) |
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| 185 | { |
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| 186 | currentVoice->filename = omStrDup(currentVoice->prev->filename); |
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| 187 | currentVoice->pi = currentVoice->prev->pi; |
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| 188 | } |
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| 189 | else |
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| 190 | { |
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| 191 | currentVoice->filename = omStrDup(""); |
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| 192 | currentVoice->pi = pi; |
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| 193 | } |
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[88ece17] | 194 | } |
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| 195 | currentVoice->buffer = s; |
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| 196 | currentVoice->sw = BI_buffer; |
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| 197 | currentVoice->typ = t; |
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| 198 | switch (t) |
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| 199 | { |
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| 200 | case BT_execute: |
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| 201 | yylineno-=2; |
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| 202 | break; |
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| 203 | case BT_proc: |
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| 204 | case BT_example: |
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| 205 | currentVoice->oldb=myynewbuffer(); |
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| 206 | yylineno = lineno+1; |
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| 207 | break; |
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| 208 | case BT_if: |
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| 209 | case BT_else: |
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| 210 | case BT_break: |
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| 211 | yylineno = yy_blocklineno-1; |
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| 212 | break; |
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| 213 | //case BT_file: |
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| 214 | default: |
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| 215 | yylineno = 1; |
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| 216 | break; |
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| 217 | } |
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| 218 | //Print("start body (%s) at line %d\n",BT_name[t],yylineno); |
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| 219 | currentVoice->start_lineno = yylineno; |
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| 220 | //printf("start buffer typ %d\n",t); |
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| 221 | //Voice *p=currentVoice; |
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[f9b0bd] | 222 | //PrintS("-----------------\ncurr:"); |
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[88ece17] | 223 | //do |
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| 224 | //{ |
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| 225 | //Print("voice fn:%s\n",p->filename); |
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| 226 | //p=p->prev; |
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| 227 | //} |
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| 228 | //while (p!=NULL); |
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[f9b0bd] | 229 | //PrintS("----------------\n"); |
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[88ece17] | 230 | } |
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| 231 | |
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| 232 | /*2 |
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| 233 | * exit Buffer of type 'typ': |
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| 234 | * returns 1 if buffer type could not be found |
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| 235 | */ |
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| 236 | BOOLEAN exitBuffer(feBufferTypes typ) |
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| 237 | { |
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| 238 | //printf("exitBuffer: %d(%s),(%x)\n", |
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| 239 | // typ,BT_name[typ], currentVoice); |
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| 240 | //Voice *p=currentVoice; |
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[f9b0bd] | 241 | //PrintS("-----------------\ncurr:"); |
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[88ece17] | 242 | //do |
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| 243 | //{ |
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| 244 | //Print("voice fn:%s\n",p->filename); |
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| 245 | //p=p->prev; |
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| 246 | //} |
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| 247 | //while (p!=NULL); |
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[f9b0bd] | 248 | //PrintS("----------------\n"); |
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[88ece17] | 249 | if (typ == BT_break) // valid inside for, while. may skip if, else |
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| 250 | { |
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| 251 | /*4 first check for valid buffer type, skip if/else*/ |
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| 252 | Voice *p=currentVoice; |
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| 253 | loop |
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| 254 | { |
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| 255 | if ((p->typ != BT_if) |
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| 256 | &&(p->typ != BT_else)) |
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| 257 | { |
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| 258 | if (p->typ == BT_break /*typ*/) |
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| 259 | { |
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| 260 | while (p != currentVoice) |
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| 261 | { |
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| 262 | exitVoice(); |
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| 263 | } |
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| 264 | exitVoice(); |
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| 265 | return FALSE; |
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| 266 | } |
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| 267 | else return TRUE; |
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| 268 | } |
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| 269 | if (p->prev==NULL) break; |
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| 270 | p=p->prev; |
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| 271 | } |
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| 272 | /*4 break not inside a for/while: return an error*/ |
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| 273 | if (/*typ*/ BT_break != currentVoice->typ) return 1; |
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| 274 | return exitVoice(); |
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| 275 | } |
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| 276 | |
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| 277 | if ((typ == BT_proc) |
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| 278 | || (typ == BT_example)) |
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| 279 | { |
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| 280 | Voice *p=currentVoice; |
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| 281 | loop |
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| 282 | { |
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| 283 | if ((p->typ == BT_proc) |
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| 284 | || (p->typ == BT_example)) |
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| 285 | { |
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| 286 | while (p != currentVoice) |
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| 287 | { |
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| 288 | exitVoice(); |
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| 289 | } |
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| 290 | exitVoice(); |
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| 291 | return FALSE; |
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| 292 | } |
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| 293 | if (p->prev==NULL) break; |
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| 294 | p=p->prev; |
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| 295 | } |
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| 296 | } |
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| 297 | /*4 return not inside a proc: return an error*/ |
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| 298 | return TRUE; |
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| 299 | } |
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| 300 | |
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| 301 | /*2 |
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| 302 | * jump to the beginning of a buffer |
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| 303 | */ |
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| 304 | BOOLEAN contBuffer(feBufferTypes typ) |
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| 305 | { |
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| 306 | //printf("contBuffer: %d(%s),(%x)\n", |
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| 307 | // typ,BT_name[typ], currentVoice); |
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| 308 | if (typ == BT_break) // valid inside for, while. may skip if, else |
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| 309 | { |
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| 310 | // first check for valid buffer type |
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| 311 | Voice *p=currentVoice; |
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| 312 | loop |
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| 313 | { |
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| 314 | if ((p->typ != BT_if) |
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| 315 | &&(p->typ != BT_else)) |
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| 316 | { |
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| 317 | if (p->typ == BT_break /*typ*/) |
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| 318 | { |
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| 319 | while (p != currentVoice) |
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| 320 | { |
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| 321 | exitVoice(); |
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| 322 | } |
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| 323 | yylineno = currentVoice->start_lineno; |
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| 324 | currentVoice->fptr=0; |
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| 325 | return FALSE; |
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| 326 | } |
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| 327 | else return TRUE; |
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| 328 | } |
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| 329 | if (p->prev==NULL) break; |
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| 330 | p=p->prev; |
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| 331 | } |
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| 332 | } |
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| 333 | return TRUE; |
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| 334 | } |
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| 335 | |
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| 336 | /*2 |
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| 337 | * leave a voice: kill local variables |
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| 338 | * setup everything from the previous level |
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| 339 | * return 1 if leaving the top level, 0 otherwise |
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| 340 | */ |
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| 341 | BOOLEAN exitVoice() |
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| 342 | { |
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| 343 | //printf("exitVoice: %d(%s),(%x)\n", |
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| 344 | // currentVoice->typ,BT_name[currentVoice->typ], currentVoice); |
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| 345 | //{ |
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| 346 | //Voice *p=currentVoice; |
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[f9b0bd] | 347 | //PrintS("-----------------\ncurr:"); |
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[88ece17] | 348 | //do |
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| 349 | //{ |
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| 350 | //Print("voice fn:%s\n",p->filename); |
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| 351 | //p=p->prev; |
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| 352 | //} |
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| 353 | //while (p!=NULL); |
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[f9b0bd] | 354 | //PrintS("----------------\n"); |
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[88ece17] | 355 | //} |
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| 356 | if (currentVoice!=NULL) |
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| 357 | { |
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| 358 | if (currentVoice->oldb!=NULL) |
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| 359 | { |
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| 360 | myyoldbuffer(currentVoice->oldb); |
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| 361 | currentVoice->oldb=NULL; |
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| 362 | } |
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[5a47b7b] | 363 | if (currentVoice->filename!=NULL) |
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| 364 | { |
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| 365 | omFree((ADDRESS)currentVoice->filename); |
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| 366 | currentVoice->filename=NULL; |
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| 367 | } |
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| 368 | if (currentVoice->buffer!=NULL) |
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| 369 | { |
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| 370 | omFree((ADDRESS)currentVoice->buffer); |
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| 371 | currentVoice->buffer=NULL; |
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| 372 | } |
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[a9fbf7] | 373 | if ((currentVoice->prev==NULL) |
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| 374 | &&(currentVoice->sw==BI_file) |
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| 375 | &&(currentVoice->files!=stdin)) |
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[88ece17] | 376 | { |
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| 377 | currentVoice->prev=feInitStdin(currentVoice); |
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| 378 | } |
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| 379 | if (currentVoice->prev!=NULL) |
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| 380 | { |
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| 381 | //printf("exitVoice typ %d(%s)\n", |
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| 382 | // currentVoice->typ,BT_name[currentVoice->typ]); |
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| 383 | if (currentVoice->typ==BT_if) |
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| 384 | { |
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| 385 | currentVoice->prev->ifsw=2; |
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| 386 | } |
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| 387 | else |
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| 388 | { |
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| 389 | currentVoice->prev->ifsw=0; |
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| 390 | } |
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| 391 | if ((currentVoice->sw == BI_file) |
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| 392 | && (currentVoice->files!=NULL)) |
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| 393 | { |
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| 394 | fclose(currentVoice->files); |
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| 395 | } |
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| 396 | yylineno=currentVoice->prev->curr_lineno; |
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| 397 | currentVoice->prev->next=NULL; |
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| 398 | } |
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| 399 | Voice *p=currentVoice->prev; |
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| 400 | delete currentVoice; |
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| 401 | currentVoice=p; |
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| 402 | } |
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| 403 | return currentVoice==NULL; |
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| 404 | } |
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| 405 | |
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| 406 | /*2 |
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| 407 | * set prompt_char |
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| 408 | * only called with currentVoice->sw == BI_stdin |
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| 409 | */ |
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| 410 | static void feShowPrompt(void) |
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| 411 | { |
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| 412 | fe_promptstr[0]=prompt_char; |
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| 413 | } |
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| 414 | |
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| 415 | /*2 |
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| 416 | * print echo (si_echo or TRACE), set my_yylinebuf |
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| 417 | */ |
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[2e4ec14] | 418 | static int fePrintEcho(char *anf, char */*b*/) |
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[88ece17] | 419 | { |
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| 420 | char *ss=strrchr(anf,'\n'); |
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| 421 | int len_s; |
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| 422 | if (ss==NULL) |
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| 423 | { |
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| 424 | len_s=strlen(anf); |
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| 425 | } |
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| 426 | else |
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| 427 | { |
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| 428 | len_s=ss-anf+1; |
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| 429 | } |
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| 430 | // my_yylinebuf: |
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| 431 | int mrc=si_min(len_s,79)-1; |
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| 432 | strcpy(my_yylinebuf,anf+(len_s-1)-mrc); |
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| 433 | if (my_yylinebuf[mrc] == '\n') my_yylinebuf[mrc] = '\0'; |
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| 434 | mrc--; |
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| 435 | // handle echo: |
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| 436 | if (((si_echo>myynest) |
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| 437 | && ((currentVoice->typ==BT_proc) |
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| 438 | || (currentVoice->typ==BT_example) |
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| 439 | || (currentVoice->typ==BT_file) |
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| 440 | || (currentVoice->typ==BT_none) |
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| 441 | ) |
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| 442 | && (strncmp(anf,";return();",10)!=0) |
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| 443 | ) |
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| 444 | || (traceit&TRACE_SHOW_LINE) |
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| 445 | || (traceit&TRACE_SHOW_LINE1)) |
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| 446 | { |
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| 447 | if (currentVoice->typ!=BT_example) |
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| 448 | { |
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| 449 | if (currentVoice->filename==NULL) |
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| 450 | Print("(none) %3d%c ",yylineno,prompt_char); |
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| 451 | else |
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| 452 | Print("%s %3d%c ",currentVoice->filename,yylineno,prompt_char); |
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| 453 | } |
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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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[c5bae4] | 460 | char c; |
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| 461 | do |
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| 462 | { |
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| 463 | c=fgetc(stdin); |
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[612da7] | 464 | if (c=='n') traceit_stop=1; |
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[c5bae4] | 465 | } |
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| 466 | while(c!='\n'); |
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[88ece17] | 467 | } |
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| 468 | } |
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| 469 | else if (traceit&TRACE_SHOW_LINENO) |
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| 470 | { |
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| 471 | Print("{%d}",yylineno); |
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| 472 | mflush(); |
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| 473 | } |
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[a0da83] | 474 | else if (traceit&TRACE_PROFILING) |
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| 475 | { |
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| 476 | if (File_Profiling==NULL) |
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| 477 | File_Profiling=fopen("smon.out","a"); |
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| 478 | if (File_Profiling==NULL) |
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| 479 | traceit &= (~TRACE_PROFILING); |
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| 480 | else |
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| 481 | { |
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| 482 | if (currentVoice->filename==NULL) |
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| 483 | fprintf(File_Profiling,"(none) %d\n",yylineno); |
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| 484 | else |
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| 485 | fprintf(File_Profiling,"%s %d\n",currentVoice->filename,yylineno); |
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| 486 | } |
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| 487 | } |
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[88ece17] | 488 | #ifdef HAVE_SDB |
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| 489 | if ((blocknest==0) |
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| 490 | && (currentVoice->pi!=NULL) |
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| 491 | && (currentVoice->pi->trace_flag!=0)) |
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| 492 | { |
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| 493 | sdb(currentVoice, anf, len_s); |
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| 494 | } |
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| 495 | #endif |
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| 496 | prompt_char = '.'; |
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| 497 | return len_s; |
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| 498 | } |
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| 499 | |
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| 500 | int feReadLine(char* b, int l) |
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| 501 | { |
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| 502 | char *s=NULL; |
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| 503 | int offset = 0; /* will not be used if s==NULL*/ |
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| 504 | // try to read from the buffer into b, max l chars |
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| 505 | if (currentVoice!=NULL) |
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| 506 | { |
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| 507 | if((currentVoice->buffer!=NULL) |
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| 508 | && (currentVoice->buffer[currentVoice->fptr]!='\0')) |
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| 509 | { |
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| 510 | NewBuff: |
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[89f4843] | 511 | REGISTER int i=0; |
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[88ece17] | 512 | long startfptr=currentVoice->fptr; |
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| 513 | long tmp_ptr=currentVoice->fptr; |
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| 514 | l--; |
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| 515 | loop |
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| 516 | { |
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[89f4843] | 517 | REGISTER char c= |
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[88ece17] | 518 | b[i]=currentVoice->buffer[tmp_ptr/*currentVoice->fptr*/]; |
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| 519 | i++; |
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| 520 | if (yy_noeof==noeof_block) |
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| 521 | { |
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| 522 | if (c<' ') yylineno++; |
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| 523 | else if (c=='}') break; |
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| 524 | } |
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| 525 | else |
---|
| 526 | { |
---|
| 527 | if ((c<' ') || |
---|
| 528 | (c==';') || |
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| 529 | (c==')') |
---|
| 530 | ) |
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| 531 | break; |
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| 532 | } |
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| 533 | if (i>=l) break; |
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| 534 | tmp_ptr++;/*currentVoice->fptr++;*/ |
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| 535 | if(currentVoice->buffer[tmp_ptr/*currentVoice->fptr*/]=='\0') break; |
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| 536 | } |
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| 537 | currentVoice->fptr=tmp_ptr; |
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| 538 | b[i]='\0'; |
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| 539 | if (currentVoice->sw==BI_buffer) |
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| 540 | { |
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[15ca85] | 541 | BOOLEAN show_echo=FALSE; |
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| 542 | char *anf; |
---|
| 543 | long len; |
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[88ece17] | 544 | if (startfptr==0) |
---|
| 545 | { |
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[15ca85] | 546 | anf=currentVoice->buffer; |
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[88ece17] | 547 | const char *ss=strchr(anf,'\n'); |
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| 548 | if (ss==NULL) len=strlen(anf); |
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| 549 | else len=ss-anf; |
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[15ca85] | 550 | show_echo=TRUE; |
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[88ece17] | 551 | } |
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[471e31] | 552 | else if /*(startfptr>0) &&*/ |
---|
| 553 | (currentVoice->buffer[startfptr-1]=='\n') |
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[88ece17] | 554 | { |
---|
[15ca85] | 555 | anf=currentVoice->buffer+startfptr; |
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[88ece17] | 556 | const char *ss=strchr(anf,'\n'); |
---|
| 557 | if (ss==NULL) len=strlen(anf); |
---|
| 558 | else len=ss-anf; |
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[15ca85] | 559 | yylineno++; |
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[a0d569] | 560 | show_echo=TRUE; |
---|
[15ca85] | 561 | } |
---|
| 562 | if (show_echo) |
---|
| 563 | { |
---|
[88ece17] | 564 | char *s=(char *)omAlloc(len+2); |
---|
| 565 | strncpy(s,anf,len+2); |
---|
| 566 | s[len+1]='\0'; |
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| 567 | fePrintEcho(s,b); |
---|
| 568 | omFree((ADDRESS)s); |
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| 569 | } |
---|
| 570 | } |
---|
| 571 | currentVoice->fptr++; |
---|
| 572 | return i; |
---|
| 573 | } |
---|
| 574 | // no buffer there or e-o-buffer or eoln: |
---|
| 575 | if (currentVoice->sw!=BI_buffer) |
---|
| 576 | { |
---|
| 577 | currentVoice->fptr=0; |
---|
| 578 | if (currentVoice->buffer==NULL) |
---|
| 579 | { |
---|
[612da7] | 580 | currentVoice->buff_size=MAX_FILE_BUFFER-sizeof(ADDRESS); |
---|
| 581 | currentVoice->buffer=(char *)omAlloc(currentVoice->buff_size); |
---|
[88ece17] | 582 | omMarkAsStaticAddr(currentVoice->buffer); |
---|
| 583 | } |
---|
| 584 | } |
---|
| 585 | offset=0; |
---|
| 586 | NewRead: |
---|
| 587 | yylineno++; |
---|
| 588 | if (currentVoice->sw==BI_stdin) |
---|
| 589 | { |
---|
| 590 | feShowPrompt(); |
---|
| 591 | s=fe_fgets_stdin(fe_promptstr, |
---|
| 592 | &(currentVoice->buffer[offset]), |
---|
[612da7] | 593 | currentVoice->buff_size-1-offset); |
---|
[88ece17] | 594 | //int i=0; |
---|
| 595 | //if (s!=NULL) |
---|
| 596 | // while((s[i]!='\0') /*&& (i<MAX_FILE_BUFFER)*/) {s[i] &= (char)127;i++;} |
---|
| 597 | } |
---|
| 598 | else if (currentVoice->sw==BI_file) |
---|
| 599 | { |
---|
[20f2ad6] | 600 | fseek(currentVoice->files,currentVoice->ftellptr,SEEK_SET); |
---|
[88ece17] | 601 | s=fgets(currentVoice->buffer+offset,(MAX_FILE_BUFFER-1-sizeof(ADDRESS))-offset, |
---|
| 602 | currentVoice->files); |
---|
[c3b003] | 603 | if (s!=NULL) |
---|
| 604 | { |
---|
| 605 | currentVoice->ftellptr=ftell(currentVoice->files); |
---|
| 606 | // ftell returns -1 for non-seekable streams, such as pipes |
---|
| 607 | if (currentVoice->ftellptr<0) |
---|
| 608 | currentVoice->ftellptr=0; |
---|
| 609 | } |
---|
[88ece17] | 610 | } |
---|
| 611 | //else /* BI_buffer */ s==NULL => return 0 |
---|
| 612 | // done by the default return |
---|
| 613 | } |
---|
| 614 | if (s!=NULL) |
---|
| 615 | { |
---|
| 616 | // handle prot: |
---|
[e5ecb5] | 617 | if (feProt&SI_PROT_I) |
---|
[88ece17] | 618 | { |
---|
| 619 | fputs(s,feProtFile); |
---|
| 620 | } |
---|
[7a25384] | 621 | if (File_Log!=NULL) |
---|
| 622 | { |
---|
[31891c] | 623 | File_Log_written=TRUE; |
---|
[7a25384] | 624 | fputs(s,File_Log); |
---|
| 625 | } |
---|
[88ece17] | 626 | int rc=fePrintEcho(s,b)+1; |
---|
| 627 | //s[strlen(s)+1]='\0'; add an second \0 at the end of the string |
---|
| 628 | s[rc]='\0'; |
---|
| 629 | // handel \\ : |
---|
[7ce322b] | 630 | rc-=3; if (rc<0) rc=0; |
---|
[88ece17] | 631 | if ((s[rc]=='\\')&&(currentVoice->sw!=BI_buffer)) |
---|
| 632 | { |
---|
| 633 | s[rc]='\0'; |
---|
| 634 | offset+=rc; |
---|
[612da7] | 635 | if (offset<currentVoice->buff_size) goto NewRead; |
---|
[88ece17] | 636 | } |
---|
| 637 | goto NewBuff; |
---|
| 638 | } |
---|
| 639 | /* else if (s==NULL) */ |
---|
| 640 | { |
---|
| 641 | const char *err; |
---|
| 642 | switch(yy_noeof) |
---|
| 643 | { |
---|
| 644 | case noeof_brace: |
---|
| 645 | case noeof_block: |
---|
| 646 | err="{...}"; |
---|
| 647 | break; |
---|
| 648 | case noeof_asstring: |
---|
| 649 | err="till `.`"; |
---|
| 650 | break; |
---|
| 651 | case noeof_string: |
---|
| 652 | err="string"; |
---|
| 653 | break; |
---|
| 654 | case noeof_bracket: |
---|
| 655 | err="(...)"; |
---|
| 656 | break; |
---|
| 657 | case noeof_procname: |
---|
| 658 | err="proc"; |
---|
| 659 | break; |
---|
| 660 | case noeof_comment: |
---|
| 661 | err="/*...*/"; |
---|
| 662 | break; |
---|
| 663 | default: |
---|
| 664 | return 0; |
---|
| 665 | } |
---|
| 666 | Werror("premature end of file while reading %s",err); |
---|
| 667 | return 0; |
---|
| 668 | } |
---|
| 669 | } |
---|
| 670 | |
---|
| 671 | /*2 |
---|
| 672 | * init all data structures |
---|
| 673 | */ |
---|
| 674 | #ifndef STDIN_FILENO |
---|
| 675 | #define STDIN_FILENO 0 |
---|
| 676 | #endif |
---|
| 677 | Voice * feInitStdin(Voice *pp) |
---|
| 678 | { |
---|
| 679 | Voice *p = new Voice; |
---|
| 680 | p->files = stdin; |
---|
| 681 | p->sw = (isatty(STDIN_FILENO)) ? BI_stdin : BI_file; |
---|
[33462b] | 682 | if ((pp!=NULL) && (pp->sw==BI_stdin) && (pp->files==stdin)) |
---|
[88ece17] | 683 | { |
---|
| 684 | p->files=freopen("/dev/tty","r",stdin); |
---|
| 685 | //stdin=p->files; |
---|
[65041c] | 686 | if (p->files==NULL) |
---|
| 687 | { |
---|
| 688 | p->files = stdin; |
---|
| 689 | p->sw = BI_file; |
---|
| 690 | } |
---|
| 691 | else |
---|
| 692 | p->sw = BI_stdin; |
---|
[88ece17] | 693 | } |
---|
| 694 | p->filename = omStrDup("STDIN"); |
---|
| 695 | p->start_lineno = 1; |
---|
| 696 | omMarkAsStaticAddr(p); |
---|
| 697 | omMarkAsStaticAddr(p->filename); |
---|
| 698 | return p; |
---|
| 699 | } |
---|
| 700 | #endif |
---|
| 701 | |
---|