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 | /* |
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6 | * ABSTRACT: ascii links (standard) |
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7 | */ |
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8 | |
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9 | #include <stdio.h> |
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10 | #include <string.h> |
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11 | #include <sys/types.h> |
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12 | #include <sys/stat.h> |
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13 | #include <unistd.h> |
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14 | |
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15 | #ifdef HAVE_CONFIG_H |
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16 | #include "singularconfig.h" |
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17 | #endif /* HAVE_CONFIG_H */ |
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18 | #include <kernel/mod2.h> |
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19 | #include <Singular/tok.h> |
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20 | #include <misc/options.h> |
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21 | #include <omalloc/omalloc.h> |
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22 | #include <kernel/febase.h> |
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23 | #include <Singular/subexpr.h> |
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24 | #include <Singular/ipshell.h> |
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25 | #include <Singular/ipid.h> |
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26 | #include <Singular/links/silink.h> |
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27 | |
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28 | /* declarations */ |
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29 | static BOOLEAN DumpAscii(FILE *fd, idhdl h); |
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30 | static BOOLEAN DumpAsciiIdhdl(FILE *fd, idhdl h); |
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31 | static const char* GetIdString(idhdl h); |
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32 | static int DumpRhs(FILE *fd, idhdl h); |
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33 | static BOOLEAN DumpQring(FILE *fd, idhdl h, const char *type_str); |
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34 | static BOOLEAN DumpAsciiMaps(FILE *fd, idhdl h, idhdl rhdl); |
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35 | |
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36 | extern si_link_extension si_link_root; |
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37 | |
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38 | /* =============== ASCII ============================================= */ |
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39 | BOOLEAN slOpenAscii(si_link l, short flag, leftv /*h*/) |
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40 | { |
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41 | const char *mode; |
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42 | if (flag & SI_LINK_OPEN) |
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43 | { |
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44 | if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0)) |
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45 | flag = SI_LINK_READ; |
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46 | else flag = SI_LINK_WRITE; |
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47 | } |
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48 | |
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49 | if (flag == SI_LINK_READ) mode = "r"; |
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50 | else if (strcmp(l->mode, "w") == 0) mode = "w"; |
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51 | else mode = "a"; |
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52 | |
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53 | |
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54 | if (l->name[0] == '\0') |
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55 | { |
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56 | // stdin or stdout |
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57 | if (flag == SI_LINK_READ) |
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58 | { |
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59 | l->data = (void *) stdin; |
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60 | mode = "r"; |
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61 | } |
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62 | else |
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63 | { |
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64 | l->data = (void *) stdout; |
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65 | mode = "a"; |
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66 | } |
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67 | } |
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68 | else |
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69 | { |
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70 | // normal ascii link to a file |
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71 | FILE *outfile; |
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72 | char *filename=l->name; |
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73 | |
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74 | if(filename[0]=='>') |
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75 | { |
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76 | if (filename[1]=='>') |
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77 | { |
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78 | filename+=2; |
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79 | mode = "a"; |
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80 | } |
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81 | else |
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82 | { |
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83 | filename++; |
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84 | mode="w"; |
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85 | } |
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86 | } |
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87 | outfile=myfopen(filename,mode); |
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88 | if (outfile!=NULL) |
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89 | l->data = (void *) outfile; |
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90 | else |
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91 | return TRUE; |
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92 | } |
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93 | |
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94 | omFree(l->mode); |
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95 | l->mode = omStrDup(mode); |
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96 | SI_LINK_SET_OPEN_P(l, flag); |
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97 | return FALSE; |
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98 | } |
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99 | |
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100 | BOOLEAN slCloseAscii(si_link l) |
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101 | { |
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102 | SI_LINK_SET_CLOSE_P(l); |
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103 | if (l->name[0] != '\0') |
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104 | { |
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105 | return (fclose((FILE *)l->data)!=0); |
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106 | } |
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107 | return FALSE; |
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108 | } |
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109 | |
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110 | leftv slReadAscii2(si_link l, leftv pr) |
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111 | { |
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112 | FILE * fp=(FILE *)l->data; |
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113 | char * buf=NULL; |
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114 | if (fp!=NULL && l->name[0] != '\0') |
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115 | { |
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116 | fseek(fp,0L,SEEK_END); |
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117 | long len=ftell(fp); |
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118 | fseek(fp,0L,SEEK_SET); |
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119 | buf=(char *)omAlloc((int)len+1); |
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120 | if (BVERBOSE(V_READING)) |
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121 | Print("//Reading %ld chars\n",len); |
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122 | myfread( buf, len, 1, fp); |
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123 | buf[len]='\0'; |
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124 | } |
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125 | else |
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126 | { |
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127 | if (pr->Typ()==STRING_CMD) |
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128 | { |
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129 | buf=(char *)omAlloc(80); |
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130 | fe_fgets_stdin((char *)pr->Data(),buf,80); |
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131 | } |
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132 | else |
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133 | { |
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134 | WerrorS("read(<link>,<string>) expected"); |
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135 | buf=omStrDup(""); |
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136 | } |
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137 | } |
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138 | leftv v=(leftv)omAlloc0Bin(sleftv_bin); |
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139 | v->rtyp=STRING_CMD; |
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140 | v->data=buf; |
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141 | return v; |
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142 | } |
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143 | |
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144 | leftv slReadAscii(si_link l) |
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145 | { |
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146 | sleftv tmp; |
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147 | memset(&tmp,0,sizeof(sleftv)); |
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148 | tmp.rtyp=STRING_CMD; |
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149 | tmp.data=(void*) "? "; |
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150 | return slReadAscii2(l,&tmp); |
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151 | } |
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152 | |
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153 | BOOLEAN slWriteAscii(si_link l, leftv v) |
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154 | { |
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155 | FILE *outfile=(FILE *)l->data; |
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156 | BOOLEAN err=FALSE; |
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157 | char *s; |
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158 | while (v!=NULL) |
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159 | { |
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160 | s = v->String(); |
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161 | // free v ?? |
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162 | if (s!=NULL) |
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163 | { |
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164 | fprintf(outfile,"%s\n",s); |
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165 | omFree((ADDRESS)s); |
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166 | } |
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167 | else |
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168 | { |
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169 | Werror("cannot convert to string"); |
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170 | err=TRUE; |
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171 | } |
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172 | v = v->next; |
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173 | } |
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174 | fflush(outfile); |
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175 | return err; |
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176 | } |
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177 | |
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178 | const char* slStatusAscii(si_link l, const char* request) |
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179 | { |
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180 | if (strcmp(request, "read") == 0) |
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181 | { |
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182 | if (SI_LINK_R_OPEN_P(l)) return "ready"; |
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183 | else return "not ready"; |
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184 | } |
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185 | else if (strcmp(request, "write") == 0) |
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186 | { |
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187 | if (SI_LINK_W_OPEN_P(l)) return "ready"; |
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188 | else return "not ready"; |
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189 | } |
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190 | else return "unknown status request"; |
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191 | } |
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192 | |
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193 | /*------------------ Dumping in Ascii format -----------------------*/ |
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194 | |
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195 | BOOLEAN slDumpAscii(si_link l) |
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196 | { |
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197 | FILE *fd = (FILE *) l->data; |
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198 | idhdl h = IDROOT, rh = currRingHdl; |
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199 | BOOLEAN status = DumpAscii(fd, h); |
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200 | |
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201 | if (! status ) status = DumpAsciiMaps(fd, h, NULL); |
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202 | |
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203 | if (currRingHdl != rh) rSetHdl(rh); |
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204 | fprintf(fd, "option(set, intvec(%d, %d));\n", si_opt_1, si_opt_2); |
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205 | fprintf(fd, "RETURN();\n"); |
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206 | fflush(fd); |
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207 | |
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208 | return status; |
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209 | } |
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210 | |
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211 | // we do that recursively, to dump ids in the the order in which they |
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212 | // were actually defined |
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213 | static BOOLEAN DumpAscii(FILE *fd, idhdl h) |
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214 | { |
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215 | if (h == NULL) return FALSE; |
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216 | |
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217 | if (DumpAscii(fd, IDNEXT(h))) return TRUE; |
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218 | |
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219 | // need to set the ring before writing it, otherwise we get in |
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220 | // trouble with minpoly |
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221 | if (IDTYP(h) == RING_CMD || IDTYP(h) == QRING_CMD) |
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222 | rSetHdl(h); |
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223 | |
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224 | if (DumpAsciiIdhdl(fd, h)) return TRUE; |
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225 | |
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226 | if (IDTYP(h) == RING_CMD || IDTYP(h) == QRING_CMD) |
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227 | return DumpAscii(fd, IDRING(h)->idroot); |
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228 | else |
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229 | return FALSE; |
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230 | } |
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231 | |
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232 | static BOOLEAN DumpAsciiMaps(FILE *fd, idhdl h, idhdl rhdl) |
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233 | { |
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234 | if (h == NULL) return FALSE; |
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235 | if (DumpAsciiMaps(fd, IDNEXT(h), rhdl)) return TRUE; |
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236 | |
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237 | if (IDTYP(h) == RING_CMD || IDTYP(h) == QRING_CMD) |
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238 | return DumpAsciiMaps(fd, IDRING(h)->idroot, h); |
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239 | else if (IDTYP(h) == MAP_CMD) |
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240 | { |
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241 | char *rhs; |
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242 | rSetHdl(rhdl); |
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243 | rhs = h->String(); |
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244 | |
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245 | if (fprintf(fd, "setring %s;\n", IDID(rhdl)) == EOF) return TRUE; |
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246 | if (fprintf(fd, "%s %s = %s, %s;\n", Tok2Cmdname(MAP_CMD), IDID(h), |
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247 | IDMAP(h)->preimage, rhs) == EOF) |
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248 | { |
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249 | omFree(rhs); |
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250 | return TRUE; |
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251 | } |
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252 | else |
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253 | { |
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254 | omFree(rhs); |
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255 | return FALSE; |
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256 | } |
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257 | } |
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258 | else return FALSE; |
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259 | } |
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260 | |
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261 | static BOOLEAN DumpAsciiIdhdl(FILE *fd, idhdl h) |
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262 | { |
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263 | const char *type_str = GetIdString(h); |
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264 | int type_id = IDTYP(h); |
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265 | |
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266 | if ((type_id == PACKAGE_CMD) &&(strcmp(IDID(h), "Top") == 0)) |
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267 | return FALSE; |
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268 | |
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269 | // we do not throw an error if a wrong type was attempted to be dumped |
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270 | if (type_str == NULL) |
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271 | return FALSE; |
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272 | |
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273 | // handle qrings separately |
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274 | if (type_id == QRING_CMD) |
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275 | return DumpQring(fd, h, type_str); |
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276 | |
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277 | // C-proc not to be dumped |
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278 | if ((type_id == PROC_CMD) && (IDPROC(h)->language == LANG_C)) |
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279 | return FALSE; |
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280 | |
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281 | // put type and name |
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282 | if (fprintf(fd, "%s %s", type_str, IDID(h)) == EOF) |
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283 | return TRUE; |
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284 | // for matricies, append the dimension |
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285 | if (type_id == MATRIX_CMD) |
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286 | { |
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287 | ideal id = IDIDEAL(h); |
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288 | if (fprintf(fd, "[%d][%d]", id->nrows, id->ncols)== EOF) return TRUE; |
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289 | } |
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290 | else if (type_id == INTMAT_CMD) |
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291 | { |
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292 | if (fprintf(fd, "[%d][%d]", IDINTVEC(h)->rows(), IDINTVEC(h)->cols()) |
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293 | == EOF) return TRUE; |
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294 | } |
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295 | |
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296 | if (type_id == PACKAGE_CMD) |
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297 | { |
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298 | return (fprintf(fd, ";\n") == EOF); |
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299 | } |
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300 | |
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301 | // write the equal sign |
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302 | if (fprintf(fd, " = ") == EOF) return TRUE; |
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303 | |
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304 | // and the right hand side |
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305 | if (DumpRhs(fd, h) == EOF) return TRUE; |
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306 | |
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307 | // semicolon und tschuess |
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308 | if (fprintf(fd, ";\n") == EOF) return TRUE; |
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309 | |
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310 | return FALSE; |
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311 | } |
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312 | |
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313 | static const char* GetIdString(idhdl h) |
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314 | { |
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315 | int type = IDTYP(h); |
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316 | |
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317 | switch(type) |
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318 | { |
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319 | case LIST_CMD: |
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320 | { |
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321 | lists l = IDLIST(h); |
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322 | int i, nl = l->nr + 1; |
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323 | |
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324 | for (i=0; i<nl; i++) |
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325 | if (GetIdString((idhdl) &(l->m[i])) == NULL) return NULL; |
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326 | } |
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327 | case PACKAGE_CMD: |
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328 | case INT_CMD: |
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329 | case INTVEC_CMD: |
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330 | case INTMAT_CMD: |
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331 | case STRING_CMD: |
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332 | case RING_CMD: |
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333 | case QRING_CMD: |
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334 | case PROC_CMD: |
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335 | case NUMBER_CMD: |
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336 | case POLY_CMD: |
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337 | case IDEAL_CMD: |
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338 | case VECTOR_CMD: |
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339 | case MODUL_CMD: |
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340 | case MATRIX_CMD: |
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341 | return Tok2Cmdname(type); |
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342 | |
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343 | case MAP_CMD: |
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344 | case LINK_CMD: |
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345 | return NULL; |
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346 | |
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347 | default: |
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348 | Warn("Error dump data of type %s", Tok2Cmdname(IDTYP(h))); |
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349 | return NULL; |
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350 | } |
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351 | } |
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352 | |
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353 | static BOOLEAN DumpQring(FILE *fd, idhdl h, const char *type_str) |
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354 | { |
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355 | char *ring_str = h->String(); |
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356 | if (fprintf(fd, "%s temp_ring = %s;\n", Tok2Cmdname(RING_CMD), ring_str) |
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357 | == EOF) return TRUE; |
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358 | if (fprintf(fd, "%s temp_ideal = %s;\n", Tok2Cmdname(IDEAL_CMD), |
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359 | iiStringMatrix((matrix) IDRING(h)->qideal, 1, currRing, n_GetChar(currRing->cf))) |
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360 | == EOF) return TRUE; |
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361 | if (fprintf(fd, "attrib(temp_ideal, \"isSB\", 1);\n") == EOF) return TRUE; |
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362 | if (fprintf(fd, "%s %s = temp_ideal;\n", type_str, IDID(h)) == EOF) |
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363 | return TRUE; |
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364 | if (fprintf(fd, "kill temp_ring;\n") == EOF) return TRUE; |
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365 | else |
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366 | { |
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367 | omFree(ring_str); |
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368 | return FALSE; |
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369 | } |
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370 | } |
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371 | |
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372 | |
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373 | static int DumpRhs(FILE *fd, idhdl h) |
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374 | { |
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375 | int type_id = IDTYP(h); |
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376 | |
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377 | if (type_id == LIST_CMD) |
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378 | { |
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379 | lists l = IDLIST(h); |
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380 | int i, nl = l->nr; |
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381 | |
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382 | fprintf(fd, "list("); |
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383 | |
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384 | for (i=0; i<nl; i++) |
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385 | { |
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386 | if (DumpRhs(fd, (idhdl) &(l->m[i])) == EOF) return EOF; |
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387 | fprintf(fd, ","); |
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388 | } |
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389 | if (nl > 0) |
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390 | { |
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391 | if (DumpRhs(fd, (idhdl) &(l->m[nl])) == EOF) return EOF; |
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392 | } |
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393 | fprintf(fd, ")"); |
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394 | } |
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395 | else if (type_id == STRING_CMD) |
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396 | { |
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397 | char *pstr = IDSTRING(h); |
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398 | fputc('"', fd); |
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399 | while (*pstr != '\0') |
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400 | { |
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401 | if (*pstr == '"' || *pstr == '\\') fputc('\\', fd); |
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402 | fputc(*pstr, fd); |
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403 | pstr++; |
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404 | } |
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405 | fputc('"', fd); |
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406 | } |
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407 | else if (type_id == PROC_CMD) |
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408 | { |
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409 | procinfov pi = IDPROC(h); |
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410 | if (pi->language == LANG_SINGULAR) |
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411 | { |
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412 | if( pi->data.s.body==NULL) iiGetLibProcBuffer(pi); |
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413 | char *pstr = pi->data.s.body; |
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414 | fputc('"', fd); |
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415 | while (*pstr != '\0') |
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416 | { |
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417 | if (*pstr == '"' || *pstr == '\\') fputc('\\', fd); |
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418 | fputc(*pstr, fd); |
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419 | pstr++; |
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420 | } |
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421 | fputc('"', fd); |
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422 | } |
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423 | else fputs("(null)", fd); |
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424 | } |
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425 | else |
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426 | { |
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427 | char *rhs = h->String(); |
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428 | |
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429 | if (rhs == NULL) return EOF; |
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430 | |
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431 | BOOLEAN need_klammer=FALSE; |
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432 | if (type_id == INTVEC_CMD) { fprintf(fd, "intvec(");need_klammer=TRUE; } |
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433 | else if (type_id == IDEAL_CMD) { fprintf(fd, "ideal(");need_klammer=TRUE; } |
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434 | else if (type_id == MODUL_CMD) { fprintf(fd, "module(");need_klammer=TRUE; } |
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435 | |
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436 | if (fprintf(fd, "%s", rhs) == EOF) return EOF; |
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437 | omFree(rhs); |
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438 | |
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439 | if ((type_id == RING_CMD || type_id == QRING_CMD) && |
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440 | IDRING(h)->cf->type==n_algExt) |
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441 | { |
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442 | StringSetS(""); |
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443 | p_Write(IDRING(h)->cf->extRing->qideal->m[0],IDRING(h)->cf->extRing); |
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444 | rhs = StringEndS(); |
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445 | if (fprintf(fd, "; minpoly = %s", rhs) == EOF) { omFree(rhs); return EOF;} |
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446 | omFree(rhs); |
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447 | } |
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448 | else if (need_klammer) fprintf(fd, ")"); |
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449 | } |
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450 | return 1; |
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451 | } |
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452 | |
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453 | BOOLEAN slGetDumpAscii(si_link l) |
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454 | { |
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455 | if (l->name[0] == '\0') |
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456 | { |
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457 | Werror("getdump: Can not get dump from stdin"); |
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458 | return TRUE; |
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459 | } |
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460 | else |
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461 | { |
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462 | BOOLEAN status = newFile(l->name); |
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463 | if (status) |
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464 | return TRUE; |
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465 | |
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466 | int old_echo=si_echo; |
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467 | si_echo=0; |
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468 | |
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469 | status=yyparse(); |
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470 | |
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471 | si_echo=old_echo; |
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472 | |
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473 | if (status) |
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474 | return TRUE; |
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475 | else |
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476 | { |
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477 | // lets reset the file pointer to the end to reflect that |
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478 | // we are finished with reading |
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479 | FILE *f = (FILE *) l->data; |
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480 | fseek(f, 0L, SEEK_END); |
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481 | return FALSE; |
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482 | } |
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483 | } |
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484 | } |
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485 | |
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486 | |
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487 | void slStandardInit() |
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488 | { |
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489 | si_link_extension s; |
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490 | si_link_root=(si_link_extension)omAlloc0Bin(s_si_link_extension_bin); |
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491 | si_link_root->Open=slOpenAscii; |
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492 | si_link_root->Close=slCloseAscii; |
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493 | si_link_root->Kill=NULL; |
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494 | si_link_root->Read=slReadAscii; |
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495 | si_link_root->Read2=slReadAscii2; |
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496 | si_link_root->Write=slWriteAscii; |
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497 | si_link_root->Dump=slDumpAscii; |
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498 | si_link_root->GetDump=slGetDumpAscii; |
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499 | si_link_root->Status=slStatusAscii; |
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500 | si_link_root->type="ASCII"; |
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501 | s = si_link_root; |
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502 | s->next = NULL; |
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503 | } |
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