1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id$ */ |
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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 <kernel/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 <omalloc/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 | #include <unistd.h> |
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20 | |
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21 | #ifdef HAVE_PWD_H |
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22 | #include <pwd.h> |
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23 | #endif |
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24 | |
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25 | #include <kernel/febase.h> |
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26 | #include <omalloc/omalloc.h> |
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27 | #include <reporter/reporter.h> |
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28 | #include <resources/feFopen.h> |
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29 | #include <misc/options.h> |
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30 | |
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31 | #define fePutChar(c) fputc((unsigned char)(c),stdout) |
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32 | /*0 implementation */ |
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33 | |
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34 | char fe_promptstr[] =" "; |
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35 | |
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36 | // output/print buffer: |
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37 | #define INITIAL_PRINT_BUFFER 24*1024L |
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38 | // line buffer for reading: |
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39 | // minimal value for MAX_FILE_BUFFER: 4*4096 - see Tst/Long/gcd0_l.tst |
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40 | // this is an upper limit for the size of monomials/numbers read via the interpreter |
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41 | #define MAX_FILE_BUFFER 4*4096 |
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42 | static long feBufferLength=INITIAL_PRINT_BUFFER; |
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43 | static char * feBuffer=(char *)omAlloc(INITIAL_PRINT_BUFFER); |
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44 | |
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45 | int si_echo = 0; |
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46 | int printlevel = 0; |
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47 | int colmax = 80; |
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48 | char prompt_char = '>'; /*1 either '>' or '.'*/ |
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49 | extern "C" { |
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50 | BITSET test=(BITSET)0; |
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51 | BITSET verbose = Sy_bit(V_QUIET) |
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52 | //| Sy_bit(V_QRING) // not default, as speed drops by 10 % |
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53 | | Sy_bit(V_REDEFINE) |
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54 | | Sy_bit(V_LOAD_LIB) |
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55 | | Sy_bit(V_SHOW_USE) |
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56 | | Sy_bit(V_PROMPT) |
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57 | /* | Sy_bit(V_DEBUG_MEM) */ |
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58 | ;} |
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59 | BOOLEAN errorreported = FALSE; |
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60 | char * feErrors=NULL; |
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61 | int feErrorsLen=0; |
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62 | BOOLEAN feWarn = TRUE; |
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63 | BOOLEAN feOut = TRUE; |
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64 | |
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65 | const char feNotImplemented[]="not implemented"; |
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66 | |
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67 | void (*WerrorS_callback)(const char *s) = NULL; |
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68 | |
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69 | int feProt = FALSE; |
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70 | FILE* feProtFile; |
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71 | |
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72 | |
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73 | /************************************************************************** |
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74 | * handling of 'voices' |
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75 | **************************************************************************/ |
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76 | |
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77 | extern int blocknest; /* scaner.l internal */ |
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78 | |
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79 | int yy_noeof=0; // the scanner "state" |
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80 | int yy_blocklineno; // to get the lineno of the block start from scanner |
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81 | Voice *currentVoice = NULL; |
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82 | FILE *feFilePending; /*temp. storage for grammar.y */ |
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83 | |
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84 | //static const char * BT_name[]={"BT_none","BT_break","BT_proc","BT_example", |
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85 | // "BT_file","BT_execute","BT_if","BT_else"}; |
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86 | /*2 |
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87 | * the name of the current 'Voice': the procname (or filename) |
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88 | */ |
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89 | const char * sNoName_fe="_"; |
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90 | const char * VoiceName() |
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91 | { |
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92 | if ((currentVoice!=NULL) |
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93 | && (currentVoice->filename!=NULL)) |
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94 | return currentVoice->filename; |
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95 | return sNoName_fe; |
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96 | } |
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97 | |
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98 | /*2 |
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99 | * the calling chain of Voices |
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100 | */ |
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101 | void VoiceBackTrack() |
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102 | { |
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103 | Voice *p=currentVoice; |
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104 | while (p->prev!=NULL) |
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105 | { |
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106 | p=p->prev; |
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107 | char *s=p->filename; |
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108 | if (s==NULL) |
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109 | PrintS("-- called from ? --\n"); |
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110 | else |
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111 | Print("-- called from %s --\n",s); |
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112 | } |
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113 | } |
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114 | |
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115 | /*2 |
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116 | * init a new voice similiar to the current |
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117 | */ |
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118 | void Voice::Next() |
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119 | { |
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120 | Voice *p=new Voice; |
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121 | // OB: ??? |
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122 | // Hmm... when Singular is used as batch file |
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123 | // then this voice is never freed |
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124 | omMarkAsStaticAddr(p); |
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125 | if (currentVoice != NULL) |
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126 | { |
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127 | currentVoice->curr_lineno=yylineno; |
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128 | currentVoice->next=p; |
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129 | } |
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130 | p->prev=currentVoice; |
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131 | currentVoice=p; |
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132 | //Print("Next:"); |
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133 | } |
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134 | |
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135 | feBufferTypes Voice::Typ() |
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136 | { |
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137 | switch(typ) |
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138 | { |
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139 | case BT_proc: |
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140 | case BT_example: |
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141 | case BT_file: |
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142 | return typ; |
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143 | default: |
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144 | if (prev==NULL) return (feBufferTypes)0; |
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145 | return prev->Typ(); |
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146 | } |
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147 | } |
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148 | |
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149 | /*2 |
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150 | * start the file 'fname' (STDIN is stdin) as a new voice (cf.VFile) |
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151 | * return FALSE on success, TRUE if an error occurs (file cannot be opened) |
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152 | */ |
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153 | BOOLEAN newFile(char *fname,FILE* f) |
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154 | { |
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155 | currentVoice->Next(); |
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156 | //Print(":File%d(%s):%s(%x)\n", |
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157 | // currentVoice->typ,BT_name[currentVoice->typ],fname,currentVoice); |
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158 | currentVoice->filename = omStrDup(fname); |
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159 | omMarkAsStaticAddr(currentVoice->filename); |
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160 | if (strcmp(fname,"STDIN") == 0) |
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161 | { |
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162 | currentVoice->files = stdin; |
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163 | currentVoice->sw = BI_stdin; |
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164 | currentVoice->start_lineno = 1; |
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165 | } |
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166 | else |
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167 | { |
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168 | currentVoice->sw = BI_file; /* needed by exitVoice below */ |
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169 | if (f!=NULL) |
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170 | currentVoice->files = f; |
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171 | else |
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172 | { |
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173 | currentVoice->files = feFopen(fname,"r",NULL,TRUE); |
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174 | if (currentVoice->files==NULL) |
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175 | { |
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176 | exitVoice(); |
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177 | return TRUE; |
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178 | } |
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179 | } |
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180 | currentVoice->start_lineno = 0; |
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181 | } |
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182 | yylineno=currentVoice->start_lineno; |
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183 | //Voice *p=currentVoice; |
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184 | //Print("-----------------\ncurr:"); |
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185 | //do |
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186 | //{ |
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187 | //Print("voice fn:%s\n",p->filename); |
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188 | //p=p->prev; |
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189 | //} |
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190 | //while (p!=NULL); |
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191 | //Print("----------------\n"); |
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192 | return FALSE; |
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193 | } |
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194 | |
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195 | void newBuffer(char* s, feBufferTypes t, procinfo* pi, int lineno) |
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196 | { |
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197 | currentVoice->Next(); |
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198 | //Print(":Buffer%d(%s):%s(%x)\n", |
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199 | // t,BT_name[t],pname,currentVoice); |
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200 | if (pi!=NULL) |
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201 | { |
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202 | long l=strlen(pi->procname); |
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203 | if (pi->libname!=NULL) l+=strlen(pi->libname); |
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204 | currentVoice->filename = (char *)omAlloc(l+3); |
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205 | *currentVoice->filename='\0'; |
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206 | if (pi->libname!=NULL) strcat(currentVoice->filename,pi->libname); |
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207 | strcat(currentVoice->filename,"::"); |
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208 | strcat(currentVoice->filename,pi->procname); |
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209 | currentVoice->pi = pi; |
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210 | } |
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211 | else |
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212 | { |
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213 | currentVoice->filename = omStrDup(currentVoice->prev->filename); |
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214 | currentVoice->pi = currentVoice->prev->pi; |
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215 | } |
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216 | currentVoice->buffer = s; |
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217 | currentVoice->sw = BI_buffer; |
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218 | currentVoice->typ = t; |
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219 | switch (t) |
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220 | { |
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221 | case BT_execute: |
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222 | yylineno-=2; |
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223 | break; |
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224 | case BT_proc: |
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225 | case BT_example: |
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226 | currentVoice->oldb=myynewbuffer(); |
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227 | yylineno = lineno+1; |
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228 | break; |
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229 | case BT_if: |
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230 | case BT_else: |
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231 | case BT_break: |
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232 | yylineno = yy_blocklineno-1; |
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233 | break; |
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234 | //case BT_file: |
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235 | default: |
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236 | yylineno = 1; |
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237 | break; |
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238 | } |
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239 | //Print("start body (%s) at line %d\n",BT_name[t],yylineno); |
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240 | currentVoice->start_lineno = yylineno; |
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241 | //printf("start buffer typ %d\n",t); |
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242 | //Voice *p=currentVoice; |
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243 | //Print("-----------------\ncurr:"); |
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244 | //do |
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245 | //{ |
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246 | //Print("voice fn:%s\n",p->filename); |
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247 | //p=p->prev; |
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248 | //} |
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249 | //while (p!=NULL); |
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250 | //Print("----------------\n"); |
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251 | } |
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252 | |
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253 | /*2 |
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254 | * exit Buffer of type 'typ': |
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255 | * returns 1 if buffer type could not be found |
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256 | */ |
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257 | BOOLEAN exitBuffer(feBufferTypes typ) |
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258 | { |
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259 | //printf("exitBuffer: %d(%s),(%x)\n", |
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260 | // typ,BT_name[typ], currentVoice); |
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261 | //Voice *p=currentVoice; |
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262 | //Print("-----------------\ncurr:"); |
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263 | //do |
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264 | //{ |
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265 | //Print("voice fn:%s\n",p->filename); |
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266 | //p=p->prev; |
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267 | //} |
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268 | //while (p!=NULL); |
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269 | //Print("----------------\n"); |
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270 | if (typ == BT_break) // valid inside for, while. may skip if, else |
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271 | { |
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272 | /*4 first check for valid buffer type, skip if/else*/ |
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273 | Voice *p=currentVoice; |
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274 | loop |
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275 | { |
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276 | if ((p->typ != BT_if) |
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277 | &&(p->typ != BT_else)) |
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278 | { |
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279 | if (p->typ == BT_break /*typ*/) |
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280 | { |
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281 | while (p != currentVoice) |
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282 | { |
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283 | exitVoice(); |
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284 | } |
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285 | exitVoice(); |
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286 | return FALSE; |
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287 | } |
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288 | else return TRUE; |
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289 | } |
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290 | if (p->prev==NULL) break; |
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291 | p=p->prev; |
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292 | } |
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293 | /*4 break not inside a for/while: return an error*/ |
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294 | if (/*typ*/ BT_break != currentVoice->typ) return 1; |
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295 | return exitVoice(); |
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296 | } |
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297 | |
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298 | if ((typ == BT_proc) |
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299 | || (typ == BT_example)) |
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300 | { |
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301 | Voice *p=currentVoice; |
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302 | loop |
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303 | { |
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304 | if ((p->typ == BT_proc) |
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305 | || (p->typ == BT_example)) |
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306 | { |
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307 | while (p != currentVoice) |
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308 | { |
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309 | exitVoice(); |
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310 | } |
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311 | exitVoice(); |
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312 | return FALSE; |
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313 | } |
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314 | if (p->prev==NULL) break; |
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315 | p=p->prev; |
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316 | } |
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317 | } |
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318 | /*4 return not inside a proc: return an error*/ |
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319 | return TRUE; |
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320 | } |
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321 | |
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322 | /*2 |
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323 | * jump to the beginning of a buffer |
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324 | */ |
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325 | BOOLEAN contBuffer(feBufferTypes typ) |
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326 | { |
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327 | //printf("contBuffer: %d(%s),(%x)\n", |
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328 | // typ,BT_name[typ], currentVoice); |
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329 | if (typ == BT_break) // valid inside for, while. may skip if, else |
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330 | { |
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331 | // first check for valid buffer type |
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332 | Voice *p=currentVoice; |
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333 | loop |
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334 | { |
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335 | if ((p->typ != BT_if) |
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336 | &&(p->typ != BT_else)) |
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337 | { |
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338 | if (p->typ == BT_break /*typ*/) |
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339 | { |
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340 | while (p != currentVoice) |
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341 | { |
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342 | exitVoice(); |
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343 | } |
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344 | yylineno = currentVoice->start_lineno; |
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345 | currentVoice->fptr=0; |
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346 | return FALSE; |
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347 | } |
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348 | else return TRUE; |
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349 | } |
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350 | if (p->prev==NULL) break; |
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351 | p=p->prev; |
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352 | } |
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353 | } |
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354 | return TRUE; |
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355 | } |
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356 | |
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357 | /*2 |
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358 | * leave a voice: kill local variables |
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359 | * setup everything from the previous level |
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360 | * return 1 if leaving the top level, 0 otherwise |
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361 | */ |
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362 | BOOLEAN exitVoice() |
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363 | { |
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364 | //printf("exitVoice: %d(%s),(%x)\n", |
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365 | // currentVoice->typ,BT_name[currentVoice->typ], currentVoice); |
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366 | //{ |
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367 | //Voice *p=currentVoice; |
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368 | //Print("-----------------\ncurr:"); |
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369 | //do |
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370 | //{ |
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371 | //Print("voice fn:%s\n",p->filename); |
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372 | //p=p->prev; |
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373 | //} |
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374 | //while (p!=NULL); |
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375 | //Print("----------------\n"); |
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376 | //} |
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377 | if (currentVoice!=NULL) |
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378 | { |
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379 | if (currentVoice->oldb!=NULL) |
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380 | { |
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381 | myyoldbuffer(currentVoice->oldb); |
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382 | currentVoice->oldb=NULL; |
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383 | } |
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384 | if ((currentVoice->prev==NULL)&&(currentVoice->sw==BI_file)) |
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385 | { |
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386 | currentVoice->prev=feInitStdin(currentVoice); |
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387 | } |
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388 | if (currentVoice->prev!=NULL) |
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389 | { |
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390 | //printf("exitVoice typ %d(%s)\n", |
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391 | // currentVoice->typ,BT_name[currentVoice->typ]); |
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392 | if (currentVoice->typ==BT_if) |
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393 | { |
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394 | currentVoice->prev->ifsw=2; |
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395 | } |
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396 | else |
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397 | { |
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398 | currentVoice->prev->ifsw=0; |
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399 | } |
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400 | if ((currentVoice->sw == BI_file) |
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401 | && (currentVoice->files!=NULL)) |
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402 | { |
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403 | fclose(currentVoice->files); |
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404 | } |
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405 | if (currentVoice->filename!=NULL) |
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406 | { |
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407 | omFree((ADDRESS)currentVoice->filename); |
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408 | currentVoice->filename=NULL; |
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409 | } |
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410 | if (currentVoice->buffer!=NULL) |
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411 | { |
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412 | omFree((ADDRESS)currentVoice->buffer); |
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413 | currentVoice->buffer=NULL; |
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414 | } |
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415 | yylineno=currentVoice->prev->curr_lineno; |
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416 | currentVoice->prev->next=NULL; |
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417 | } |
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418 | Voice *p=currentVoice->prev; |
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419 | delete currentVoice; |
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420 | currentVoice=p; |
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421 | } |
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422 | return currentVoice==NULL; |
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423 | } |
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424 | |
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425 | /*2 |
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426 | * set prompt_char |
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427 | * only called with currentVoice->sw == BI_stdin |
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428 | */ |
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429 | static void feShowPrompt(void) |
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430 | { |
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431 | fe_promptstr[0]=prompt_char; |
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432 | } |
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433 | |
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434 | /*2 |
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435 | * print echo (si_echo or TRACE), set my_yylinebuf |
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436 | */ |
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437 | static int fePrintEcho(char *anf, char *b) |
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438 | { |
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439 | char *ss=strrchr(anf,'\n'); |
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440 | int len_s; |
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441 | if (ss==NULL) |
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442 | { |
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443 | len_s=strlen(anf); |
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444 | } |
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445 | else |
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446 | { |
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447 | len_s=ss-anf+1; |
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448 | } |
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449 | // my_yylinebuf: |
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450 | int mrc=si_min(len_s,79)-1; |
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451 | strcpy(my_yylinebuf,anf+(len_s-1)-mrc); |
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452 | if (my_yylinebuf[mrc] == '\n') my_yylinebuf[mrc] = '\0'; |
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453 | mrc--; |
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454 | // handle echo: |
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455 | if (((si_echo>myynest) |
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456 | && ((currentVoice->typ==BT_proc) |
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457 | || (currentVoice->typ==BT_example) |
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458 | || (currentVoice->typ==BT_file) |
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459 | || (currentVoice->typ==BT_none) |
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460 | ) |
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461 | && (strncmp(anf,";return();",10)!=0) |
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462 | ) |
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463 | || (traceit&TRACE_SHOW_LINE) |
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464 | || (traceit&TRACE_SHOW_LINE1)) |
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465 | { |
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466 | if (currentVoice->typ!=BT_example) |
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467 | { |
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468 | if (currentVoice->filename==NULL) |
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469 | Print("(none) %3d%c ",yylineno,prompt_char); |
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470 | else |
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471 | Print("%s %3d%c ",currentVoice->filename,yylineno,prompt_char); |
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472 | } |
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473 | { |
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474 | fwrite(anf,1,len_s,stdout); |
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475 | mflush(); |
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476 | } |
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477 | if (traceit&TRACE_SHOW_LINE) |
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478 | { |
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479 | while(fgetc(stdin)!='\n'); |
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480 | } |
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481 | } |
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482 | else if (traceit&TRACE_SHOW_LINENO) |
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483 | { |
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484 | Print("{%d}",yylineno); |
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485 | mflush(); |
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486 | } |
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487 | #ifdef HAVE_SDB |
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488 | if ((blocknest==0) |
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489 | && (currentVoice->pi!=NULL) |
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490 | && (currentVoice->pi->trace_flag!=0)) |
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491 | { |
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492 | sdb(currentVoice, anf, len_s); |
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493 | } |
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494 | #endif |
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495 | prompt_char = '.'; |
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496 | return len_s; |
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497 | } |
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498 | |
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499 | int feReadLine(char* b, int l) |
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500 | { |
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501 | char *s=NULL; |
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502 | int offset = 0; /* will not be used if s==NULL*/ |
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503 | // try to read from the buffer into b, max l chars |
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504 | if (currentVoice!=NULL) |
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505 | { |
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506 | if((currentVoice->buffer!=NULL) |
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507 | && (currentVoice->buffer[currentVoice->fptr]!='\0')) |
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508 | { |
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509 | NewBuff: |
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510 | register int i=0; |
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511 | long startfptr=currentVoice->fptr; |
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512 | long tmp_ptr=currentVoice->fptr; |
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513 | l--; |
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514 | loop |
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515 | { |
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516 | register char c= |
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517 | b[i]=currentVoice->buffer[tmp_ptr/*currentVoice->fptr*/]; |
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518 | i++; |
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519 | if (yy_noeof==noeof_block) |
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520 | { |
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521 | if (c<' ') yylineno++; |
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522 | else if (c=='}') break; |
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523 | } |
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524 | else |
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525 | { |
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526 | if ((c<' ') || |
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527 | (c==';') || |
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528 | (c==')') |
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529 | ) |
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530 | break; |
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531 | } |
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532 | if (i>=l) break; |
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533 | tmp_ptr++;/*currentVoice->fptr++;*/ |
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534 | if(currentVoice->buffer[tmp_ptr/*currentVoice->fptr*/]=='\0') break; |
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535 | } |
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536 | currentVoice->fptr=tmp_ptr; |
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537 | b[i]='\0'; |
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538 | if (currentVoice->sw==BI_buffer) |
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539 | { |
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540 | if (startfptr==0) |
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541 | { |
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542 | char *anf=currentVoice->buffer; |
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543 | const char *ss=strchr(anf,'\n'); |
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544 | long len; |
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545 | if (ss==NULL) len=strlen(anf); |
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546 | else len=ss-anf; |
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547 | char *s=(char *)omAlloc(len+2); |
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548 | strncpy(s,anf,len+2); |
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549 | s[len+1]='\0'; |
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550 | fePrintEcho(s,b); |
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551 | omFree((ADDRESS)s); |
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552 | } |
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553 | else if (/*(startfptr>0) &&*/ |
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554 | (currentVoice->buffer[startfptr-1]=='\n')) |
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555 | { |
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556 | char *anf=currentVoice->buffer+startfptr; |
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557 | const char *ss=strchr(anf,'\n'); |
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558 | long len; |
---|
559 | if (ss==NULL) len=strlen(anf); |
---|
560 | else len=ss-anf; |
---|
561 | char *s=(char *)omAlloc(len+2); |
---|
562 | strncpy(s,anf,len+2); |
---|
563 | s[len+1]='\0'; |
---|
564 | yylineno++; |
---|
565 | fePrintEcho(s,b); |
---|
566 | omFree((ADDRESS)s); |
---|
567 | } |
---|
568 | } |
---|
569 | currentVoice->fptr++; |
---|
570 | return i; |
---|
571 | } |
---|
572 | // no buffer there or e-o-buffer or eoln: |
---|
573 | if (currentVoice->sw!=BI_buffer) |
---|
574 | { |
---|
575 | currentVoice->fptr=0; |
---|
576 | if (currentVoice->buffer==NULL) |
---|
577 | { |
---|
578 | currentVoice->buffer=(char *)omAlloc(MAX_FILE_BUFFER-sizeof(ADDRESS)); |
---|
579 | omMarkAsStaticAddr(currentVoice->buffer); |
---|
580 | } |
---|
581 | } |
---|
582 | offset=0; |
---|
583 | NewRead: |
---|
584 | yylineno++; |
---|
585 | if (currentVoice->sw==BI_stdin) |
---|
586 | { |
---|
587 | feShowPrompt(); |
---|
588 | s=fe_fgets_stdin(fe_promptstr, |
---|
589 | &(currentVoice->buffer[offset]), |
---|
590 | omSizeOfAddr(currentVoice->buffer)-1-offset); |
---|
591 | //int i=0; |
---|
592 | //if (s!=NULL) |
---|
593 | // while((s[i]!='\0') /*&& (i<MAX_FILE_BUFFER)*/) {s[i] &= (char)127;i++;} |
---|
594 | } |
---|
595 | else if (currentVoice->sw==BI_file) |
---|
596 | { |
---|
597 | s=fgets(currentVoice->buffer+offset,(MAX_FILE_BUFFER-1-sizeof(ADDRESS))-offset, |
---|
598 | currentVoice->files); |
---|
599 | } |
---|
600 | //else /* BI_buffer */ s==NULL => return 0 |
---|
601 | // done by the default return |
---|
602 | } |
---|
603 | if (s!=NULL) |
---|
604 | { |
---|
605 | // handle prot: |
---|
606 | if (feProt&PROT_I) |
---|
607 | { |
---|
608 | fputs(s,feProtFile); |
---|
609 | } |
---|
610 | int rc=fePrintEcho(s,b)+1; |
---|
611 | //s[strlen(s)+1]='\0'; add an second \0 at the end of the string |
---|
612 | s[rc]='\0'; |
---|
613 | // handel \\ : |
---|
614 | rc-=3; |
---|
615 | if ((s[rc]=='\\')&&(currentVoice->sw!=BI_buffer)) |
---|
616 | { |
---|
617 | s[rc]='\0'; |
---|
618 | offset+=rc; |
---|
619 | if (offset<(int)omSizeOfAddr(currentVoice->buffer)) goto NewRead; |
---|
620 | } |
---|
621 | goto NewBuff; |
---|
622 | } |
---|
623 | /* else if (s==NULL) */ |
---|
624 | { |
---|
625 | const char *err; |
---|
626 | switch(yy_noeof) |
---|
627 | { |
---|
628 | case noeof_brace: |
---|
629 | case noeof_block: |
---|
630 | err="{...}"; |
---|
631 | break; |
---|
632 | case noeof_asstring: |
---|
633 | err="till `.`"; |
---|
634 | break; |
---|
635 | case noeof_string: |
---|
636 | err="string"; |
---|
637 | break; |
---|
638 | case noeof_bracket: |
---|
639 | err="(...)"; |
---|
640 | break; |
---|
641 | case noeof_procname: |
---|
642 | err="proc"; |
---|
643 | break; |
---|
644 | case noeof_comment: |
---|
645 | err="/*...*/"; |
---|
646 | break; |
---|
647 | default: |
---|
648 | return 0; |
---|
649 | } |
---|
650 | Werror("premature end of file while reading %s",err); |
---|
651 | return 0; |
---|
652 | } |
---|
653 | } |
---|
654 | |
---|
655 | /*2 |
---|
656 | * init all data structures |
---|
657 | */ |
---|
658 | #ifndef STDIN_FILENO |
---|
659 | #define STDIN_FILENO 0 |
---|
660 | #endif |
---|
661 | Voice * feInitStdin(Voice *pp) |
---|
662 | { |
---|
663 | Voice *p = new Voice; |
---|
664 | p->files = stdin; |
---|
665 | p->sw = (isatty(STDIN_FILENO)) ? BI_stdin : BI_file; |
---|
666 | if ((pp!=NULL) && (pp->files==stdin)) |
---|
667 | { |
---|
668 | p->files=freopen("/dev/tty","r",stdin); |
---|
669 | //stdin=p->files; |
---|
670 | p->sw = BI_stdin; |
---|
671 | } |
---|
672 | p->filename = omStrDup("STDIN"); |
---|
673 | p->start_lineno = 1; |
---|
674 | omMarkAsStaticAddr(p); |
---|
675 | omMarkAsStaticAddr(p->filename); |
---|
676 | return p; |
---|
677 | } |
---|
678 | |
---|
679 | static char * feBufferStart; |
---|
680 | /* only used in StringSet(S)/StringAppend(S)*/ |
---|
681 | char * StringAppend(const char *fmt, ...) |
---|
682 | { |
---|
683 | va_list ap; |
---|
684 | char *s = feBufferStart; /*feBuffer + strlen(feBuffer);*/ |
---|
685 | int vs; |
---|
686 | long more; |
---|
687 | va_start(ap, fmt); |
---|
688 | if ((more=feBufferStart-feBuffer+strlen(fmt)+100)>feBufferLength) |
---|
689 | { |
---|
690 | more = ((more + (8*1024-1))/(8*1024))*(8*1024); |
---|
691 | int l=s-feBuffer; |
---|
692 | feBuffer=(char *)omReallocSize((ADDRESS)feBuffer,feBufferLength, |
---|
693 | more); |
---|
694 | omMarkAsStaticAddr(feBuffer); |
---|
695 | feBufferLength=more; |
---|
696 | s=feBuffer+l; |
---|
697 | #ifndef BSD_SPRINTF |
---|
698 | feBufferStart=s; |
---|
699 | #endif |
---|
700 | } |
---|
701 | #ifdef BSD_SPRINTF |
---|
702 | vsprintf(s, fmt, ap); |
---|
703 | while (*s!='\0') s++; |
---|
704 | feBufferStart =s; |
---|
705 | #else |
---|
706 | #ifdef HAVE_VSNPRINTF |
---|
707 | vs = vsnprintf(s, feBufferLength - (feBufferStart - feBuffer), fmt, ap); |
---|
708 | if (vs == -1) |
---|
709 | { |
---|
710 | assume(0); |
---|
711 | feBufferStart = feBuffer + feBufferLength -1; |
---|
712 | } |
---|
713 | else |
---|
714 | { |
---|
715 | feBufferStart += vs; |
---|
716 | } |
---|
717 | #else |
---|
718 | feBufferStart += vsprintf(s, fmt, ap); |
---|
719 | #endif |
---|
720 | #endif |
---|
721 | omCheckAddrSize(feBuffer, feBufferLength); |
---|
722 | va_end(ap); |
---|
723 | return feBuffer; |
---|
724 | } |
---|
725 | |
---|
726 | char * StringAppendS(const char *st) |
---|
727 | { |
---|
728 | if (*st!='\0') |
---|
729 | { |
---|
730 | /* feBufferStart is feBuffer + strlen(feBuffer);*/ |
---|
731 | int l; |
---|
732 | long more; |
---|
733 | int ll=feBufferStart-feBuffer; |
---|
734 | if ((more=ll+2+(l=strlen(st)))>feBufferLength) |
---|
735 | { |
---|
736 | more = ((more + (8*1024-1))/(8*1024))*(8*1024); |
---|
737 | feBuffer=(char *)omReallocSize((ADDRESS)feBuffer,feBufferLength, |
---|
738 | more); |
---|
739 | feBufferLength=more; |
---|
740 | feBufferStart=feBuffer+ll; |
---|
741 | } |
---|
742 | strcat(feBufferStart, st); |
---|
743 | feBufferStart +=l; |
---|
744 | } |
---|
745 | return feBuffer; |
---|
746 | } |
---|
747 | |
---|
748 | char * StringSetS(const char *st) |
---|
749 | { |
---|
750 | int l; |
---|
751 | long more; |
---|
752 | if ((l=strlen(st))>feBufferLength) |
---|
753 | { |
---|
754 | more = ((l + (4*1024-1))/(4*1024))*(4*1024); |
---|
755 | feBuffer=(char *)omReallocSize((ADDRESS)feBuffer,feBufferLength, |
---|
756 | more); |
---|
757 | feBufferLength=more; |
---|
758 | } |
---|
759 | strcpy(feBuffer,st); |
---|
760 | feBufferStart=feBuffer+l; |
---|
761 | return feBuffer; |
---|
762 | } |
---|
763 | |
---|
764 | extern "C" { |
---|
765 | void WerrorS(const char *s) |
---|
766 | { |
---|
767 | #ifdef HAVE_MPSR |
---|
768 | if (fe_fgets_stdin==fe_fgets_dummy) |
---|
769 | { |
---|
770 | if (feErrors==NULL) |
---|
771 | { |
---|
772 | feErrors=(char *)omAlloc(256); |
---|
773 | feErrorsLen=256; |
---|
774 | *feErrors = '\0'; |
---|
775 | } |
---|
776 | else |
---|
777 | { |
---|
778 | if (((int)(strlen((char *)s)+ 20 +strlen(feErrors)))>=feErrorsLen) |
---|
779 | { |
---|
780 | feErrors=(char *)omReallocSize(feErrors,feErrorsLen,feErrorsLen+256); |
---|
781 | feErrorsLen+=256; |
---|
782 | } |
---|
783 | } |
---|
784 | strcat(feErrors, "Singular error: "); |
---|
785 | strcat(feErrors, (char *)s); |
---|
786 | } |
---|
787 | else |
---|
788 | #endif |
---|
789 | { |
---|
790 | { |
---|
791 | if (WerrorS_callback == NULL) |
---|
792 | { |
---|
793 | fwrite(" ? ",1,5,stderr); |
---|
794 | fwrite((char *)s,1,strlen((char *)s),stderr); |
---|
795 | fwrite("\n",1,1,stderr); |
---|
796 | fflush(stderr); |
---|
797 | } |
---|
798 | else |
---|
799 | { |
---|
800 | WerrorS_callback(s); |
---|
801 | } |
---|
802 | if (feProt&PROT_O) |
---|
803 | { |
---|
804 | fwrite(" ? ",1,5,feProtFile); |
---|
805 | fwrite((char *)s,1,strlen((char *)s),feProtFile); |
---|
806 | fwrite("\n",1,1,feProtFile); |
---|
807 | } |
---|
808 | } |
---|
809 | } |
---|
810 | errorreported = TRUE; |
---|
811 | #ifdef HAVE_FACTORY |
---|
812 | // libfac: |
---|
813 | extern int libfac_interruptflag; |
---|
814 | libfac_interruptflag=1; |
---|
815 | #endif |
---|
816 | } |
---|
817 | |
---|
818 | void Werror(const char *fmt, ...) |
---|
819 | { |
---|
820 | va_list ap; |
---|
821 | va_start(ap, fmt); |
---|
822 | char *s=(char *)omAlloc(256); |
---|
823 | vsprintf(s, fmt, ap); |
---|
824 | WerrorS(s); |
---|
825 | omFreeSize(s,256); |
---|
826 | va_end(ap); |
---|
827 | } |
---|
828 | |
---|
829 | void WarnS(const char *s) |
---|
830 | { |
---|
831 | #define warn_str "// ** " |
---|
832 | if (feWarn) /* ignore warnings if option --no-warn was given */ |
---|
833 | { |
---|
834 | fwrite(warn_str,1,6,stdout); |
---|
835 | fwrite(s,1,strlen(s),stdout); |
---|
836 | fwrite("\n",1,1,stdout); |
---|
837 | fflush(stdout); |
---|
838 | if (feProt&PROT_O) |
---|
839 | { |
---|
840 | fwrite(warn_str,1,6,feProtFile); |
---|
841 | fwrite(s,1,strlen(s),feProtFile); |
---|
842 | fwrite("\n",1,1,feProtFile); |
---|
843 | } |
---|
844 | } |
---|
845 | } |
---|
846 | } /* end extern "C" */ |
---|
847 | |
---|
848 | void Warn(const char *fmt, ...) |
---|
849 | { |
---|
850 | va_list ap; |
---|
851 | va_start(ap, fmt); |
---|
852 | char *s=(char *)omAlloc(256); |
---|
853 | vsprintf(s, fmt, ap); |
---|
854 | WarnS(s); |
---|
855 | omFreeSize(s,256); |
---|
856 | va_end(ap); |
---|
857 | } |
---|
858 | |
---|
859 | |
---|
860 | // some routines which redirect the output of print to a string |
---|
861 | static char* sprint = NULL; |
---|
862 | static char* sprint_backup = NULL; |
---|
863 | void SPrintStart() |
---|
864 | { |
---|
865 | if (sprint!=NULL) |
---|
866 | { |
---|
867 | if (sprint_backup!=NULL) WerrorS("internal error: SPrintStart"); |
---|
868 | else sprint_backup=sprint; |
---|
869 | } |
---|
870 | sprint = omStrDup(""); |
---|
871 | } |
---|
872 | |
---|
873 | static void SPrintS(const char* s) |
---|
874 | { |
---|
875 | omCheckAddr(sprint); |
---|
876 | if ((s == NULL)||(*s == '\0')) return; |
---|
877 | int ls = strlen(s); |
---|
878 | |
---|
879 | char* ns; |
---|
880 | int l = strlen(sprint); |
---|
881 | ns = (char*) omAlloc((l + ls + 1)*sizeof(char)); |
---|
882 | if (l > 0) strcpy(ns, sprint); |
---|
883 | |
---|
884 | strcpy(&(ns[l]), s); |
---|
885 | omFree(sprint); |
---|
886 | sprint = ns; |
---|
887 | omCheckAddr(sprint); |
---|
888 | } |
---|
889 | |
---|
890 | char* SPrintEnd() |
---|
891 | { |
---|
892 | char* ns = sprint; |
---|
893 | sprint = sprint_backup; |
---|
894 | sprint_backup=NULL; |
---|
895 | omCheckAddr(ns); |
---|
896 | return ns; |
---|
897 | } |
---|
898 | |
---|
899 | // Print routines |
---|
900 | extern "C" { |
---|
901 | void PrintS(const char *s) |
---|
902 | { |
---|
903 | if (sprint != NULL) |
---|
904 | { |
---|
905 | SPrintS(s); |
---|
906 | return; |
---|
907 | } |
---|
908 | else if (feOut) /* do not print when option --no-out was given */ |
---|
909 | { |
---|
910 | { |
---|
911 | fwrite(s,1,strlen(s),stdout); |
---|
912 | fflush(stdout); |
---|
913 | if (feProt&PROT_O) |
---|
914 | { |
---|
915 | fwrite(s,1,strlen(s),feProtFile); |
---|
916 | } |
---|
917 | } |
---|
918 | } |
---|
919 | } |
---|
920 | |
---|
921 | void PrintLn() |
---|
922 | { |
---|
923 | PrintS("\n"); |
---|
924 | } |
---|
925 | |
---|
926 | void Print(const char *fmt, ...) |
---|
927 | { |
---|
928 | if (sprint != NULL) |
---|
929 | { |
---|
930 | va_list ap; |
---|
931 | va_start(ap, fmt); |
---|
932 | omCheckAddr(sprint); |
---|
933 | int ls = strlen(fmt); |
---|
934 | if (fmt != NULL && ls > 0) |
---|
935 | { |
---|
936 | char* ns; |
---|
937 | int l = strlen(sprint); |
---|
938 | ns = (char*) omAlloc(sizeof(char)*(ls + l + 512)); |
---|
939 | if (l > 0) strcpy(ns, sprint); |
---|
940 | |
---|
941 | #ifdef HAVE_VSNPRINTF |
---|
942 | l = vsnprintf(&(ns[l]), ls+511, fmt, ap); |
---|
943 | assume(l != -1); |
---|
944 | #else |
---|
945 | vsprintf(&(ns[l]), fmt, ap); |
---|
946 | #endif |
---|
947 | omCheckAddr(ns); |
---|
948 | omFree(sprint); |
---|
949 | sprint = ns; |
---|
950 | } |
---|
951 | va_end(ap); |
---|
952 | return; |
---|
953 | } |
---|
954 | else if (feOut) |
---|
955 | { |
---|
956 | va_list ap; |
---|
957 | va_start(ap, fmt); |
---|
958 | int l; |
---|
959 | long ls=strlen(fmt); |
---|
960 | char *s=(char *)omAlloc(ls+512); |
---|
961 | #ifdef HAVE_VSNPRINTF |
---|
962 | l = vsnprintf(s, ls+511, fmt, ap); |
---|
963 | if ((l==-1)||(s[l]!='\0')||(l!=(int)strlen(s))) |
---|
964 | { |
---|
965 | printf("Print problem: l=%d, fmt=>>%s<<\n",l,fmt); |
---|
966 | s[l]='\0'; |
---|
967 | } |
---|
968 | #else |
---|
969 | vsprintf(s, fmt, ap); |
---|
970 | #endif |
---|
971 | PrintS(s); |
---|
972 | omFree(s); |
---|
973 | va_end(ap); |
---|
974 | } |
---|
975 | } |
---|
976 | void PrintNSpaces(const int n) |
---|
977 | { |
---|
978 | int l=n-1; |
---|
979 | while(l>=0) { PrintS(" "); l--; } |
---|
980 | } |
---|
981 | |
---|
982 | /* end extern "C" */ |
---|
983 | } |
---|
984 | |
---|
985 | #if 0 |
---|
986 | void monitor(char* s, int mode) |
---|
987 | { |
---|
988 | if (feProt) |
---|
989 | { |
---|
990 | fclose(feProtFile); |
---|
991 | feProt = 0; |
---|
992 | } |
---|
993 | if ((s!=NULL) && (*s!='\0')) |
---|
994 | { |
---|
995 | feProtFile = myfopen(s,"w"); |
---|
996 | if (feProtFile==NULL) |
---|
997 | { |
---|
998 | Werror("cannot open %s",s); |
---|
999 | feProt=0; |
---|
1000 | } |
---|
1001 | else |
---|
1002 | feProt = mode; |
---|
1003 | } |
---|
1004 | } |
---|
1005 | #else |
---|
1006 | void monitor(void *F, int mode) |
---|
1007 | { |
---|
1008 | if (feProt) |
---|
1009 | { |
---|
1010 | fclose(feProtFile); |
---|
1011 | feProt = 0; |
---|
1012 | } |
---|
1013 | if (F!=NULL) |
---|
1014 | { |
---|
1015 | feProtFile = (FILE *)F; |
---|
1016 | feProt = mode; |
---|
1017 | } |
---|
1018 | } |
---|
1019 | #endif |
---|
1020 | |
---|
1021 | |
---|
1022 | #else /* ! STANDALONE_PARSER */ |
---|
1023 | #include <stdio.h> |
---|
1024 | |
---|
1025 | #endif |
---|
1026 | |
---|