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 <kernel/mod2.h> |
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10 | #include <misc/options.h> |
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11 | #include <omalloc/omalloc.h> |
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12 | |
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13 | #include <Singular/tok.h> |
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14 | #include <Singular/subexpr.h> |
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15 | #include <Singular/ipshell.h> |
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16 | #include <Singular/ipid.h> |
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17 | #include <Singular/fevoices.h> |
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18 | #include <kernel/oswrapper/feread.h> |
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19 | #include <Singular/ipshell.h> |
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20 | #include <Singular/links/silink.h> |
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21 | |
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22 | #include <stdio.h> |
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23 | #include <string.h> |
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24 | #include <sys/types.h> |
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25 | #include <sys/stat.h> |
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26 | #include <unistd.h> |
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27 | |
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28 | /* declarations */ |
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29 | static BOOLEAN DumpAscii(FILE *fd, idhdl h,char ***list_of_libs); |
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30 | static BOOLEAN DumpAsciiIdhdl(FILE *fd, idhdl h,char ***list_of_libs); |
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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 | static BOOLEAN CollectLibs(char *name, char ***list_of_libs); |
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36 | //static BOOLEAN DumpLibs(FILE *fd, char ***list_of_libs); |
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37 | |
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38 | extern si_link_extension si_link_root; |
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39 | |
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40 | /* =============== ASCII ============================================= */ |
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41 | BOOLEAN slOpenAscii(si_link l, short flag, leftv /*h*/) |
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42 | { |
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43 | const char *mode; |
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44 | if (flag & SI_LINK_OPEN) |
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45 | { |
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46 | if (l->mode[0] != '\0' && (strcmp(l->mode, "r") == 0)) |
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47 | flag = SI_LINK_READ; |
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48 | else flag = SI_LINK_WRITE; |
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49 | } |
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50 | |
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51 | if (flag == SI_LINK_READ) mode = "r"; |
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52 | else if (strcmp(l->mode, "w") == 0) mode = "w"; |
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53 | else mode = "a"; |
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54 | |
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55 | |
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56 | if (l->name[0] == '\0') |
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57 | { |
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58 | // stdin or stdout |
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59 | if (flag == SI_LINK_READ) |
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60 | { |
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61 | l->data = (void *) stdin; |
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62 | mode = "r"; |
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63 | } |
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64 | else |
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65 | { |
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66 | l->data = (void *) stdout; |
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67 | mode = "a"; |
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68 | } |
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69 | } |
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70 | else |
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71 | { |
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72 | // normal ascii link to a file |
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73 | FILE *outfile; |
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74 | char *filename=l->name; |
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75 | |
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76 | if(filename[0]=='>') |
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77 | { |
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78 | if (filename[1]=='>') |
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79 | { |
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80 | filename+=2; |
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81 | mode = "a"; |
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82 | } |
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83 | else |
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84 | { |
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85 | filename++; |
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86 | mode="w"; |
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87 | } |
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88 | } |
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89 | outfile=myfopen(filename,mode); |
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90 | if (outfile!=NULL) |
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91 | l->data = (void *) outfile; |
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92 | else |
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93 | return TRUE; |
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94 | } |
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95 | |
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96 | omFree(l->mode); |
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97 | l->mode = omStrDup(mode); |
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98 | SI_LINK_SET_OPEN_P(l, flag); |
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99 | return FALSE; |
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100 | } |
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101 | |
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102 | BOOLEAN slCloseAscii(si_link l) |
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103 | { |
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104 | SI_LINK_SET_CLOSE_P(l); |
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105 | if (l->name[0] != '\0') |
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106 | { |
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107 | return (fclose((FILE *)l->data)!=0); |
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108 | } |
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109 | return FALSE; |
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110 | } |
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111 | |
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112 | leftv slReadAscii2(si_link l, leftv pr) |
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113 | { |
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114 | FILE * fp=(FILE *)l->data; |
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115 | char * buf=NULL; |
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116 | if (fp!=NULL && l->name[0] != '\0') |
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117 | { |
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118 | fseek(fp,0L,SEEK_END); |
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119 | long len=ftell(fp); |
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120 | fseek(fp,0L,SEEK_SET); |
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121 | buf=(char *)omAlloc((int)len+1); |
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122 | if (BVERBOSE(V_READING)) |
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123 | Print("//Reading %ld chars\n",len); |
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124 | myfread( buf, len, 1, fp); |
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125 | buf[len]='\0'; |
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126 | } |
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127 | else |
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128 | { |
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129 | if (pr->Typ()==STRING_CMD) |
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130 | { |
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131 | buf=(char *)omAlloc(80); |
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132 | fe_fgets_stdin((char *)pr->Data(),buf,80); |
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133 | } |
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134 | else |
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135 | { |
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136 | WerrorS("read(<link>,<string>) expected"); |
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137 | buf=omStrDup(""); |
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138 | } |
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139 | } |
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140 | leftv v=(leftv)omAlloc0Bin(sleftv_bin); |
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141 | v->rtyp=STRING_CMD; |
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142 | v->data=buf; |
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143 | return v; |
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144 | } |
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145 | |
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146 | leftv slReadAscii(si_link l) |
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147 | { |
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148 | sleftv tmp; |
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149 | memset(&tmp,0,sizeof(sleftv)); |
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150 | tmp.rtyp=STRING_CMD; |
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151 | tmp.data=(void*) "? "; |
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152 | return slReadAscii2(l,&tmp); |
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153 | } |
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154 | |
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155 | BOOLEAN slWriteAscii(si_link l, leftv v) |
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156 | { |
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157 | FILE *outfile=(FILE *)l->data; |
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158 | BOOLEAN err=FALSE; |
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159 | char *s; |
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160 | while (v!=NULL) |
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161 | { |
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162 | switch(v->Typ()) |
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163 | { |
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164 | case IDEAL_CMD: |
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165 | case MODUL_CMD: |
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166 | case MATRIX_CMD: |
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167 | { |
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168 | ideal I=(ideal)v->Data(); |
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169 | for(int i=0;i<IDELEMS(I);i++) |
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170 | { |
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171 | char *s=pString(I->m[i]); |
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172 | fwrite(s,strlen(s),1,outfile); |
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173 | omFree(s); |
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174 | if (i<IDELEMS(I)-1) fwrite(",",1,1,outfile); |
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175 | } |
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176 | break; |
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177 | } |
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178 | default: |
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179 | s = v->String(); |
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180 | // free v ?? |
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181 | if (s!=NULL) |
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182 | { |
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183 | fputs(s,outfile); |
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184 | fputc('\n',outfile); |
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185 | omFree((ADDRESS)s); |
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186 | } |
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187 | else |
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188 | { |
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189 | WerrorS("cannot convert to string"); |
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190 | err=TRUE; |
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191 | } |
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192 | } |
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193 | v = v->next; |
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194 | } |
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195 | fflush(outfile); |
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196 | return err; |
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197 | } |
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198 | |
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199 | const char* slStatusAscii(si_link l, const char* request) |
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200 | { |
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201 | if (strcmp(request, "read") == 0) |
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202 | { |
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203 | if (SI_LINK_R_OPEN_P(l)) return "ready"; |
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204 | else return "not ready"; |
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205 | } |
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206 | else if (strcmp(request, "write") == 0) |
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207 | { |
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208 | if (SI_LINK_W_OPEN_P(l)) return "ready"; |
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209 | else return "not ready"; |
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210 | } |
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211 | else return "unknown status request"; |
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212 | } |
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213 | |
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214 | /*------------------ Dumping in Ascii format -----------------------*/ |
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215 | |
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216 | BOOLEAN slDumpAscii(si_link l) |
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217 | { |
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218 | FILE *fd = (FILE *) l->data; |
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219 | idhdl h = IDROOT, rh = currRingHdl; |
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220 | char **list_of_libs=NULL; |
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221 | BOOLEAN status = DumpAscii(fd, h, &list_of_libs); |
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222 | |
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223 | if (! status ) status = DumpAsciiMaps(fd, h, NULL); |
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224 | |
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225 | if (currRingHdl != rh) rSetHdl(rh); |
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226 | fprintf(fd, "option(set, intvec(%d, %d));\n", si_opt_1, si_opt_2); |
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227 | char **p=list_of_libs; |
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228 | if (p!=NULL) |
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229 | { |
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230 | while((*p!=NULL) && (*p!=(char*)1)) |
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231 | { |
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232 | fprintf(fd,"load(\"%s\",\"try\");\n",*p); |
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233 | p++; |
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234 | } |
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235 | omFree(list_of_libs); |
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236 | } |
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237 | fputs("RETURN();\n",fd); |
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238 | fflush(fd); |
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239 | |
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240 | return status; |
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241 | } |
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242 | |
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243 | // we do that recursively, to dump ids in the the order in which they |
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244 | // were actually defined |
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245 | static BOOLEAN DumpAscii(FILE *fd, idhdl h, char ***list_of_libs) |
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246 | { |
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247 | if (h == NULL) return FALSE; |
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248 | |
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249 | if (DumpAscii(fd, IDNEXT(h),list_of_libs)) return TRUE; |
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250 | |
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251 | // need to set the ring before writing it, otherwise we get in |
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252 | // trouble with minpoly |
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253 | if (IDTYP(h) == RING_CMD) |
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254 | rSetHdl(h); |
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255 | |
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256 | if (DumpAsciiIdhdl(fd, h,list_of_libs)) return TRUE; |
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257 | |
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258 | if (IDTYP(h) == RING_CMD) |
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259 | return DumpAscii(fd, IDRING(h)->idroot,list_of_libs); |
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260 | else |
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261 | return FALSE; |
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262 | } |
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263 | |
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264 | static BOOLEAN DumpAsciiMaps(FILE *fd, idhdl h, idhdl rhdl) |
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265 | { |
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266 | if (h == NULL) return FALSE; |
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267 | if (DumpAsciiMaps(fd, IDNEXT(h), rhdl)) return TRUE; |
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268 | |
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269 | if (IDTYP(h) == RING_CMD) |
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270 | return DumpAsciiMaps(fd, IDRING(h)->idroot, h); |
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271 | else if (IDTYP(h) == MAP_CMD) |
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272 | { |
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273 | char *rhs; |
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274 | rSetHdl(rhdl); |
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275 | rhs = h->String(); |
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276 | |
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277 | if (fprintf(fd, "setring %s;\n", IDID(rhdl)) == EOF) return TRUE; |
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278 | if (fprintf(fd, "%s %s = %s, %s;\n", Tok2Cmdname(MAP_CMD), IDID(h), |
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279 | IDMAP(h)->preimage, rhs) == EOF) |
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280 | { |
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281 | omFree(rhs); |
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282 | return TRUE; |
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283 | } |
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284 | else |
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285 | { |
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286 | omFree(rhs); |
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287 | return FALSE; |
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288 | } |
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289 | } |
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290 | else return FALSE; |
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291 | } |
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292 | |
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293 | static BOOLEAN DumpAsciiIdhdl(FILE *fd, idhdl h, char ***list_of_libs) |
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294 | { |
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295 | const char *type_str = GetIdString(h); |
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296 | int type_id = IDTYP(h); |
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297 | |
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298 | if (type_id == PACKAGE_CMD) |
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299 | { |
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300 | if (strcmp(IDID(h),"Top")==0) return FALSE; // do not dump "Top" |
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301 | if (IDPACKAGE(h)->language==LANG_SINGULAR) return FALSE; |
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302 | } |
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303 | if (type_id == CRING_CMD) |
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304 | { |
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305 | // do not dump the default CRINGs: |
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306 | if (strcmp(IDID(h),"QQ")==0) return FALSE; |
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307 | if (strcmp(IDID(h),"ZZ")==0) return FALSE; |
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308 | if (strcmp(IDID(h),"AE")==0) return FALSE; |
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309 | if (strcmp(IDID(h),"QAE")==0) return FALSE; |
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310 | if (strcmp(IDID(h),"flint_poly_Q")==0) return FALSE; |
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311 | } |
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312 | |
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313 | // we do not throw an error if a wrong type was attempted to be dumped |
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314 | if (type_str == NULL) |
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315 | return FALSE; |
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316 | |
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317 | // handle qrings separately |
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318 | if ((type_id == RING_CMD)&&(IDRING(h)->qideal!=NULL)) |
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319 | return DumpQring(fd, h, type_str); |
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320 | |
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321 | // C-proc not to be dumped |
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322 | if ((type_id == PROC_CMD) && (IDPROC(h)->language == LANG_C)) |
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323 | return FALSE; |
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324 | |
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325 | // handle libraries |
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326 | if ((type_id == PROC_CMD) |
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327 | && (IDPROC(h)->language == LANG_SINGULAR) |
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328 | && (IDPROC(h)->libname!=NULL)) |
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329 | return CollectLibs(IDPROC(h)->libname,list_of_libs); |
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330 | |
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331 | // put type and name |
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332 | if (fprintf(fd, "%s %s", type_str, IDID(h)) == EOF) |
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333 | return TRUE; |
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334 | // for matricies, append the dimension |
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335 | if (type_id == MATRIX_CMD) |
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336 | { |
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337 | ideal id = IDIDEAL(h); |
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338 | if (fprintf(fd, "[%d][%d]", id->nrows, id->ncols)== EOF) return TRUE; |
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339 | } |
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340 | else if (type_id == INTMAT_CMD) |
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341 | { |
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342 | if (fprintf(fd, "[%d][%d]", IDINTVEC(h)->rows(), IDINTVEC(h)->cols()) |
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343 | == EOF) return TRUE; |
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344 | } |
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345 | |
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346 | if (type_id == PACKAGE_CMD) |
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347 | { |
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348 | return (fputs(";\n",fd) == EOF); |
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349 | } |
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350 | |
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351 | // write the equal sign |
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352 | if (fputs(" = ",fd) == EOF) return TRUE; |
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353 | |
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354 | // and the right hand side |
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355 | if (DumpRhs(fd, h) == EOF) return TRUE; |
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356 | |
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357 | // semicolon und tschuess |
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358 | if (fputs(";\n",fd) == EOF) return TRUE; |
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359 | |
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360 | return FALSE; |
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361 | } |
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362 | |
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363 | static const char* GetIdString(idhdl h) |
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364 | { |
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365 | int type = IDTYP(h); |
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366 | |
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367 | switch(type) |
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368 | { |
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369 | case LIST_CMD: |
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370 | { |
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371 | lists l = IDLIST(h); |
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372 | int i, nl = l->nr + 1; |
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373 | |
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374 | for (i=0; i<nl; i++) |
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375 | if (GetIdString((idhdl) &(l->m[i])) == NULL) return NULL; |
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376 | } |
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377 | case CRING_CMD: |
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378 | #ifdef SINGULAR_4_2 |
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379 | case CNUMBER_CMD: |
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380 | case CMATRIX_CMD: |
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381 | #endif |
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382 | case BIGINT_CMD: |
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383 | case PACKAGE_CMD: |
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384 | case INT_CMD: |
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385 | case INTVEC_CMD: |
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386 | case INTMAT_CMD: |
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387 | case STRING_CMD: |
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388 | case RING_CMD: |
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389 | case QRING_CMD: |
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390 | case PROC_CMD: |
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391 | case NUMBER_CMD: |
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392 | case POLY_CMD: |
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393 | case IDEAL_CMD: |
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394 | case VECTOR_CMD: |
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395 | case MODUL_CMD: |
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396 | case MATRIX_CMD: |
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397 | return Tok2Cmdname(type); |
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398 | |
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399 | case MAP_CMD: |
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400 | case LINK_CMD: |
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401 | return NULL; |
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402 | |
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403 | default: |
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404 | Warn("Error dump data of type %s", Tok2Cmdname(IDTYP(h))); |
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405 | return NULL; |
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406 | } |
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407 | } |
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408 | |
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409 | static BOOLEAN DumpQring(FILE *fd, idhdl h, const char *type_str) |
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410 | { |
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411 | char *ring_str = h->String(); |
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412 | if (fprintf(fd, "%s temp_ring = %s;\n", Tok2Cmdname(RING_CMD), ring_str) |
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413 | == EOF) return TRUE; |
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414 | if (fprintf(fd, "%s temp_ideal = %s;\n", Tok2Cmdname(IDEAL_CMD), |
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415 | iiStringMatrix((matrix) IDRING(h)->qideal, 1, currRing, n_GetChar(currRing->cf))) |
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416 | == EOF) return TRUE; |
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417 | if (fputs("attrib(temp_ideal, \"isSB\", 1);\n",fd) == EOF) return TRUE; |
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418 | if (fprintf(fd, "%s %s = temp_ideal;\n", type_str, IDID(h)) == EOF) |
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419 | return TRUE; |
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420 | if (fputs("kill temp_ring;\n",fd) == EOF) return TRUE; |
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421 | else |
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422 | { |
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423 | omFree(ring_str); |
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424 | return FALSE; |
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425 | } |
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426 | } |
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427 | |
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428 | static BOOLEAN CollectLibs(char *name, char *** list_of_libs) |
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429 | { |
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430 | if (*list_of_libs==NULL) |
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431 | { |
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432 | #define MAX_LIBS 256 |
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433 | (*list_of_libs)=(char**)omalloc0(MAX_LIBS*sizeof(char**)); |
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434 | (*list_of_libs)[0]=name; |
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435 | (*list_of_libs)[MAX_LIBS-1]=(char*)1; |
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436 | return FALSE; |
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437 | } |
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438 | else |
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439 | { |
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440 | char **p=*list_of_libs; |
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441 | while (((*p)!=NULL)&&((*p!=(char*)1))) |
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442 | { |
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443 | if (strcmp((*p),name)==0) return FALSE; |
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444 | p++; |
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445 | } |
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446 | if (*p==(char*)1) |
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447 | { |
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448 | WerrorS("too many libs"); |
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449 | return TRUE; |
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450 | } |
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451 | else |
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452 | { |
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453 | *p=name; |
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454 | } |
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455 | } |
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456 | return FALSE; |
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457 | } |
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458 | |
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459 | |
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460 | static int DumpRhs(FILE *fd, idhdl h) |
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461 | { |
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462 | int type_id = IDTYP(h); |
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463 | |
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464 | if (type_id == LIST_CMD) |
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465 | { |
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466 | lists l = IDLIST(h); |
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467 | int i, nl = l->nr; |
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468 | |
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469 | fputs("list(",fd); |
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470 | |
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471 | for (i=0; i<nl; i++) |
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472 | { |
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473 | if (DumpRhs(fd, (idhdl) &(l->m[i])) == EOF) return EOF; |
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474 | fputs(",",fd); |
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475 | } |
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476 | if (nl > 0) |
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477 | { |
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478 | if (DumpRhs(fd, (idhdl) &(l->m[nl])) == EOF) return EOF; |
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479 | } |
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480 | fputs(")",fd); |
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481 | } |
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482 | else if (type_id == STRING_CMD) |
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483 | { |
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484 | char *pstr = IDSTRING(h); |
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485 | fputc('"', fd); |
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486 | while (*pstr != '\0') |
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487 | { |
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488 | if (*pstr == '"' || *pstr == '\\') fputc('\\', fd); |
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489 | fputc(*pstr, fd); |
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490 | pstr++; |
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491 | } |
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492 | fputc('"', fd); |
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493 | } |
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494 | else if (type_id == PROC_CMD) |
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495 | { |
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496 | procinfov pi = IDPROC(h); |
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497 | if (pi->language == LANG_SINGULAR) |
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498 | { |
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499 | /* pi-Libname==NULL */ |
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500 | char *pstr = pi->data.s.body; |
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501 | fputc('"', fd); |
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502 | while (*pstr != '\0') |
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503 | { |
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504 | if (*pstr == '"' || *pstr == '\\') fputc('\\', fd); |
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505 | fputc(*pstr, fd); |
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506 | pstr++; |
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507 | } |
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508 | fputc('"', fd); |
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509 | } |
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510 | else fputs("(null)", fd); |
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511 | } |
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512 | else |
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513 | { |
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514 | char *rhs = h->String(); |
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515 | |
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516 | if (rhs == NULL) return EOF; |
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517 | |
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518 | BOOLEAN need_klammer=FALSE; |
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519 | if (type_id == INTVEC_CMD) { fputs("intvec(",fd);need_klammer=TRUE; } |
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520 | else if (type_id == IDEAL_CMD) { fputs("ideal(",fd);need_klammer=TRUE; } |
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521 | else if (type_id == MODUL_CMD) { fputs("module(",fd);need_klammer=TRUE; } |
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522 | else if (type_id == BIGINT_CMD) { fputs("bigint(",fd);need_klammer=TRUE; } |
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523 | |
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524 | if (fputs(rhs,fd) == EOF) return EOF; |
---|
525 | omFree(rhs); |
---|
526 | |
---|
527 | if ((type_id == RING_CMD) && |
---|
528 | IDRING(h)->cf->type==n_algExt) |
---|
529 | { |
---|
530 | StringSetS(""); |
---|
531 | p_Write(IDRING(h)->cf->extRing->qideal->m[0],IDRING(h)->cf->extRing); |
---|
532 | rhs = StringEndS(); |
---|
533 | if (fprintf(fd, "; minpoly = %s", rhs) == EOF) { omFree(rhs); return EOF;} |
---|
534 | omFree(rhs); |
---|
535 | } |
---|
536 | else if (need_klammer) fputc(')',fd); |
---|
537 | } |
---|
538 | return 1; |
---|
539 | } |
---|
540 | |
---|
541 | BOOLEAN slGetDumpAscii(si_link l) |
---|
542 | { |
---|
543 | if (l->name[0] == '\0') |
---|
544 | { |
---|
545 | WerrorS("getdump: Can not get dump from stdin"); |
---|
546 | return TRUE; |
---|
547 | } |
---|
548 | else |
---|
549 | { |
---|
550 | BOOLEAN status = newFile(l->name); |
---|
551 | if (status) |
---|
552 | return TRUE; |
---|
553 | |
---|
554 | int old_echo=si_echo; |
---|
555 | si_echo=0; |
---|
556 | |
---|
557 | status=yyparse(); |
---|
558 | |
---|
559 | si_echo=old_echo; |
---|
560 | |
---|
561 | if (status) |
---|
562 | return TRUE; |
---|
563 | else |
---|
564 | { |
---|
565 | // lets reset the file pointer to the end to reflect that |
---|
566 | // we are finished with reading |
---|
567 | FILE *f = (FILE *) l->data; |
---|
568 | fseek(f, 0L, SEEK_END); |
---|
569 | return FALSE; |
---|
570 | } |
---|
571 | } |
---|
572 | } |
---|
573 | |
---|
574 | |
---|
575 | void slStandardInit() |
---|
576 | { |
---|
577 | si_link_extension s; |
---|
578 | si_link_root=(si_link_extension)omAlloc0Bin(s_si_link_extension_bin); |
---|
579 | si_link_root->Open=slOpenAscii; |
---|
580 | si_link_root->Close=slCloseAscii; |
---|
581 | si_link_root->Kill=NULL; |
---|
582 | si_link_root->Read=slReadAscii; |
---|
583 | si_link_root->Read2=slReadAscii2; |
---|
584 | si_link_root->Write=slWriteAscii; |
---|
585 | si_link_root->Dump=slDumpAscii; |
---|
586 | si_link_root->GetDump=slGetDumpAscii; |
---|
587 | si_link_root->Status=slStatusAscii; |
---|
588 | si_link_root->type="ASCII"; |
---|
589 | s = si_link_root; |
---|
590 | s->next = NULL; |
---|
591 | } |
---|