1 | /**************************************** |
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2 | * Computer Algebra System SINGULAR * |
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3 | ****************************************/ |
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4 | /* $Id: ipid.cc,v 1.9 1998-01-16 14:29:52 krueger Exp $ */ |
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5 | |
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6 | /* |
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7 | * ABSTRACT: identfier handling |
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8 | */ |
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9 | |
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10 | #include <string.h> |
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11 | |
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12 | #include "mod2.h" |
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13 | #include "tok.h" |
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14 | #include "ipshell.h" |
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15 | #include "intvec.h" |
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16 | #include "febase.h" |
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17 | #include "mmemory.h" |
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18 | #include "numbers.h" |
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19 | #include "polys.h" |
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20 | #include "ring.h" |
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21 | #include "ideals.h" |
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22 | #include "matpol.h" |
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23 | #include "lists.h" |
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24 | #include "attrib.h" |
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25 | #include "silink.h" |
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26 | #include "syz.h" |
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27 | #include "ipid.h" |
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28 | |
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29 | idhdl idroot = NULL; |
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30 | idhdl currRingHdl = NULL; |
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31 | ring currRing = NULL; |
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32 | ideal currQuotient = NULL; |
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33 | char* iiNoName="_"; |
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34 | |
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35 | /*0 implementation*/ |
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36 | |
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37 | idhdl idrec::get(const char * s, int lev) |
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38 | { |
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39 | idhdl h = this; |
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40 | idhdl found=NULL; |
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41 | int l; |
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42 | while (h!=NULL) |
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43 | { |
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44 | l=IDLEV(h); |
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45 | mmTestLP(IDID(h)); |
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46 | if ((l==lev) && (0 == strcmp(s,IDID(h)))) return h; |
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47 | if ((l==0) && (found==NULL) && (0 == strcmp(s,IDID(h)))) |
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48 | { |
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49 | found=h; |
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50 | } |
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51 | h = IDNEXT(h); |
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52 | } |
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53 | return found; |
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54 | } |
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55 | |
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56 | //idrec::~idrec() |
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57 | //{ |
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58 | // if (id!=NULL) |
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59 | // { |
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60 | // FreeL((ADDRESS)id); |
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61 | // id=NULL; |
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62 | // } |
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63 | // /* much more !! */ |
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64 | //} |
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65 | |
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66 | idhdl idrec::set(char * s, int lev, idtyp t, BOOLEAN init) |
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67 | { |
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68 | //printf("define %s, %x, lev: %d, typ: %d\n", s,s,lev,t); |
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69 | idhdl h = (idrec *)Alloc0(sizeof(idrec)); |
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70 | int len = 0; |
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71 | IDID(h) = s; |
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72 | IDTYP(h) = t; |
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73 | IDLEV(h) = lev; |
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74 | IDNEXT(h) = this; |
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75 | if (init) |
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76 | { |
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77 | switch (t) |
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78 | { |
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79 | //the type with init routines: |
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80 | case INTVEC_CMD: |
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81 | case INTMAT_CMD: |
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82 | IDINTVEC(h) = new intvec(); |
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83 | break; |
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84 | case NUMBER_CMD: |
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85 | IDNUMBER(h) = nInit(0); |
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86 | break; |
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87 | case IDEAL_CMD: |
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88 | case MODUL_CMD: |
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89 | IDFLAG(h) = Sy_bit(FLAG_STD); |
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90 | case MATRIX_CMD: |
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91 | IDIDEAL(h) = idInit(1,1); |
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92 | break; |
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93 | case MAP_CMD: |
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94 | IDIDEAL(h) = idInit(1,1); |
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95 | IDMAP(h)->preimage = mstrdup(IDID(currRingHdl)); |
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96 | break; |
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97 | case STRING_CMD: |
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98 | IDSTRING(h) = mstrdup(""); |
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99 | break; |
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100 | case LIST_CMD: |
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101 | IDLIST(h)=(lists)Alloc(sizeof(slists)); |
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102 | IDLIST(h)->Init(); |
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103 | break; |
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104 | //the types with the standard init: set the struct to zero |
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105 | case LINK_CMD: |
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106 | len=sizeof(ip_link); |
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107 | break; |
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108 | case RING_CMD: |
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109 | case QRING_CMD: |
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110 | len = sizeof(ip_sring); |
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111 | break; |
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112 | case PACKAGE_CMD: |
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113 | len = sizeof(ip_package); |
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114 | break; |
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115 | case RESOLUTION_CMD: |
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116 | len=sizeof(ssyStrategy); |
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117 | break; |
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118 | //other types: without init (int,script,poly,def,package) |
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119 | } |
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120 | if (len!=0) |
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121 | { |
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122 | IDSTRING(h) = (char *)Alloc0(len); |
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123 | } |
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124 | } |
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125 | if(t == PROC_CMD) { |
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126 | IDPROC(h) = (procinfo *)Alloc(sizeof(procinfo)); |
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127 | memset(IDPROC(h),0,sizeof(*IDPROC(h))); |
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128 | IDPROC(h)->language=LANG_NONE; |
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129 | } |
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130 | return h; |
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131 | } |
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132 | |
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133 | idhdl enterid(char * s, int lev, idtyp t, idhdl* root, BOOLEAN init) |
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134 | { |
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135 | idhdl h; |
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136 | // is it the currRing - id ? |
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137 | if ((currRingHdl!=NULL) |
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138 | &&(IDLEV(currRingHdl)!=lev) |
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139 | &&(s==IDID(currRingHdl))) |
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140 | { |
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141 | s=mstrdup(s); |
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142 | } |
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143 | // is it already defined in root ? |
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144 | else if ((h=(*root)->get(s,lev))!=NULL) |
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145 | { |
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146 | if (IDLEV(h)!=lev) |
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147 | { |
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148 | s=mstrdup(s); |
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149 | } |
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150 | else if ((IDTYP(h) == t)||(t==DEF_CMD)) |
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151 | { |
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152 | if (BVERBOSE(V_REDEFINE)) |
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153 | Warn("redefining %s **",s); |
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154 | if (s==IDID(h)) |
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155 | IDID(h)=NULL; |
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156 | killhdl(h,root); |
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157 | } |
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158 | else |
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159 | goto errlabel; |
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160 | } |
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161 | // is it already defined in idroot ? |
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162 | else if (*root != idroot) |
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163 | { |
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164 | if ((h=idroot->get(s,lev))!=NULL) |
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165 | { |
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166 | if (IDLEV(h)!=lev) |
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167 | { |
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168 | s=mstrdup(s); |
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169 | } |
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170 | else if ((IDTYP(h) == t)||(t==DEF_CMD)) |
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171 | { |
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172 | if (BVERBOSE(V_REDEFINE)) |
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173 | Warn("redefining %s **",s); |
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174 | IDID(h)=NULL; |
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175 | killhdl(h,&idroot); |
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176 | } |
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177 | else |
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178 | { |
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179 | goto errlabel; |
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180 | } |
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181 | } |
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182 | } |
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183 | // is it already defined in currRing->idroot ? |
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184 | else if ((currRing!=NULL)&&((*root) != currRing->idroot)) |
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185 | { |
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186 | if ((h=currRing->idroot->get(s,lev))!=NULL) |
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187 | { |
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188 | if (IDLEV(h)!=lev) |
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189 | { |
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190 | s=mstrdup(s); |
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191 | } |
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192 | else if ((IDTYP(h) == t)||(t==DEF_CMD)) |
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193 | { |
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194 | if (BVERBOSE(V_REDEFINE)) |
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195 | Warn("redefining %s **",s); |
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196 | IDID(h)=NULL; |
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197 | killhdl(h,&currRing->idroot); |
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198 | } |
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199 | else |
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200 | { |
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201 | goto errlabel; |
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202 | } |
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203 | } |
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204 | } |
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205 | return *root = (*root)->set(s, lev, t, init); |
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206 | |
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207 | errlabel: |
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208 | Werror("identifier `%s` in use",s); |
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209 | return NULL; |
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210 | } |
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211 | |
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212 | void killid(char * id, idhdl * ih) |
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213 | { |
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214 | if (id!=NULL) |
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215 | { |
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216 | idhdl h = (*ih)->get(id,myynest); |
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217 | |
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218 | // id not found in global list, is it defined in current ring ? |
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219 | if (h==NULL) |
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220 | { |
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221 | if ((currRing!=NULL) && (*ih != (currRing->idroot))) |
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222 | { |
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223 | h = currRing->idroot->get(id,myynest); |
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224 | if (h!=NULL) |
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225 | { |
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226 | killhdl(h,&(currRing->idroot)); |
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227 | return; |
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228 | } |
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229 | } |
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230 | Werror("`%s` is not defined",id); |
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231 | return; |
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232 | } |
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233 | killhdl(h,ih); |
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234 | } |
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235 | else |
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236 | Werror("kill what ?"); |
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237 | } |
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238 | |
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239 | void killhdl(idhdl h) |
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240 | { |
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241 | int t=IDTYP(h); |
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242 | if ((BEGIN_RING<t) && (t<END_RING) && (t!=QRING_CMD)) |
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243 | killhdl(h,&currRing->idroot); |
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244 | else |
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245 | { |
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246 | idhdl s=idroot; |
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247 | while ((s!=h) && (s!=NULL)) s=s->next; |
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248 | if (s==NULL) killhdl(h,&currRing->idroot); |
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249 | else killhdl(h,&idroot); |
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250 | } |
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251 | } |
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252 | |
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253 | void killhdl(idhdl h, idhdl * ih) |
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254 | { |
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255 | //printf("kill %s, id %x, typ %d lev: %d\n",IDID(h),(int)IDID(h),IDTYP(h),IDLEV(h)); |
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256 | idhdl hh; |
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257 | BOOLEAN killOtherRing = TRUE; |
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258 | BOOLEAN needResetRing = FALSE; |
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259 | |
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260 | if (h->attribute!=NULL) |
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261 | { |
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262 | atKillAll(h); |
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263 | //h->attribute=NULL; |
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264 | } |
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265 | // ring / qring -------------------------------------------------------- |
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266 | // package ------------------------------------------------------------- |
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267 | if ((IDTYP(h) == RING_CMD) || (IDTYP(h) == QRING_CMD) |
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268 | || (IDTYP(h) == PACKAGE_CMD) ) |
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269 | { |
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270 | idhdl savecurrRingHdl = currRingHdl; |
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271 | ring savecurrRing = currRing; |
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272 | |
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273 | // any objects defined for this ring ? |
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274 | if (((IDTYP(h)==PACKAGE_CMD) || (IDRING(h)->ref<=0)) |
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275 | && (IDRING(h)->idroot!=NULL)) |
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276 | { |
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277 | idhdl * hd = &IDRING(h)->idroot; |
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278 | idhdl hdh = IDNEXT(*hd); |
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279 | idhdl temp; |
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280 | killOtherRing=(IDTYP(h)!=PACKAGE_CMD) && (IDRING(h)!=currRing); |
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281 | if (killOtherRing) //we are not killing the base ring, so switch |
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282 | { |
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283 | needResetRing=TRUE; |
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284 | rSetHdl(h,FALSE); |
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285 | /* no complete init*/ |
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286 | } |
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287 | while (hdh!=NULL) |
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288 | { |
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289 | temp = IDNEXT(hdh); |
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290 | killhdl(hdh,&(IDRING(h)->idroot)); |
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291 | hdh = temp; |
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292 | } |
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293 | killhdl(*hd,hd); |
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294 | } |
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295 | // reset currRing ? |
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296 | if (needResetRing) // && (killOtherRing) |
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297 | { |
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298 | //we have to switch back to the base ring |
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299 | //currRing = savecurrRing; |
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300 | //currRingHdl = savecurrRingHdl; |
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301 | if (savecurrRing!=NULL) |
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302 | { |
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303 | rSetHdl(savecurrRingHdl,TRUE); |
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304 | } |
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305 | } |
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306 | rKill(h); |
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307 | } |
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308 | // poly / vector ------------------------------------------------------- |
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309 | else if ((IDTYP(h) == POLY_CMD) || (IDTYP(h) == VECTOR_CMD)) |
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310 | { |
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311 | pDelete(&IDPOLY(h)); |
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312 | } |
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313 | // ideal / module/ matrix / map ---------------------------------------- |
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314 | else if ((IDTYP(h) == IDEAL_CMD) |
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315 | || (IDTYP(h) == MODUL_CMD) |
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316 | || (IDTYP(h) == MATRIX_CMD) |
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317 | || (IDTYP(h) == MAP_CMD)) |
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318 | { |
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319 | ideal iid = IDIDEAL(h); |
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320 | if (IDTYP(h) == MAP_CMD) |
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321 | { |
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322 | map im = IDMAP(h); |
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323 | FreeL((ADDRESS)im->preimage); |
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324 | } |
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325 | idDelete(&iid); |
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326 | } |
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327 | // string ------------------------------------------------------------- |
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328 | else if (IDTYP(h) == STRING_CMD) |
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329 | { |
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330 | FreeL((ADDRESS)IDSTRING(h)); |
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331 | //IDSTRING(h)=NULL; |
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332 | } |
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333 | // proc --------------------------------------------------------------- |
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334 | else if (IDTYP(h) == PROC_CMD) |
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335 | { |
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336 | piKill(IDPROC(h)); |
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337 | } |
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338 | // number ------------------------------------------------------------- |
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339 | else if (IDTYP(h) == NUMBER_CMD) |
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340 | { |
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341 | nDelete(&IDNUMBER(h)); |
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342 | } |
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343 | // intvec / intmat --------------------------------------------------- |
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344 | else if ((IDTYP(h) == INTVEC_CMD)||(IDTYP(h) == INTMAT_CMD)) |
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345 | { |
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346 | delete IDINTVEC(h); |
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347 | } |
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348 | // list ------------------------------------------------------------- |
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349 | else if (IDTYP(h)==LIST_CMD) |
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350 | { |
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351 | IDLIST(h)->Clean(); |
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352 | //Free((ADDRESS)IDLIST(h)->m, (IDLIST(h)->nr+1)*sizeof(sleftv)); |
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353 | //Free((ADDRESS)IDLIST(h), sizeof(slists)); |
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354 | } |
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355 | // link ------------------------------------------------------------- |
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356 | else if (IDTYP(h)==LINK_CMD) |
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357 | { |
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358 | slKill(IDLINK(h)); |
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359 | } |
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360 | else if((IDTYP(h)==RESOLUTION_CMD)&&(IDDATA(h)!=NULL)) |
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361 | { |
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362 | syKillComputation((syStrategy)IDDATA(h)); |
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363 | } |
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364 | #ifdef TEST |
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365 | else if ((IDTYP(h)!= INT_CMD)&&(IDTYP(h)!=DEF_CMD)) |
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366 | Warn("unknown type to kill: %s(%d)",Tok2Cmdname(IDTYP(h)),IDTYP(h)); |
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367 | #endif |
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368 | |
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369 | // general ------------------------------------------------------------- |
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370 | // now dechain it and delete idrec |
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371 | FreeL((ADDRESS)IDID(h)); |
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372 | //IDID(h)=NULL; |
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373 | if (h == (*ih)) |
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374 | { |
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375 | // h is at the beginning of the list |
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376 | *ih = IDNEXT(*ih); |
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377 | } |
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378 | else |
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379 | { |
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380 | // h is somethere in the list: |
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381 | hh = *ih; |
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382 | loop |
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383 | { |
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384 | idhdl hhh = IDNEXT(hh); |
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385 | if (hhh == h) |
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386 | { |
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387 | IDNEXT(hh) = IDNEXT(hhh); |
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388 | break; |
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389 | } |
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390 | hh = hhh; |
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391 | } |
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392 | } |
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393 | Free((ADDRESS)h,sizeof(idrec)); |
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394 | } |
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395 | |
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396 | idhdl ggetid(const char *n) |
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397 | { |
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398 | idhdl h = idroot->get(n,myynest); |
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399 | idhdl h2=NULL; |
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400 | if ((currRing!=NULL) && ((h==NULL)||(IDLEV(h)!=myynest))) |
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401 | { |
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402 | h2 = currRing->idroot->get(n,myynest); |
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403 | } |
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404 | if (h2==NULL) return h; |
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405 | return h2; |
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406 | } |
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407 | |
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408 | void ipListFlag(idhdl h) |
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409 | { |
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410 | if (hasFlag(h,FLAG_STD)) PrintS(" (SB)"); |
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411 | if (hasFlag(h,FLAG_DRING)) PrintS(" (D)"); |
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412 | } |
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413 | |
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414 | lists ipNameList(idhdl root) |
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415 | { |
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416 | idhdl h=root; |
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417 | /* compute the length */ |
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418 | int l=0; |
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419 | while (h!=NULL) { l++; h=IDNEXT(h); } |
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420 | /* allocate list */ |
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421 | lists L=(lists)Alloc(sizeof(slists)); |
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422 | L->Init(l); |
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423 | /* copy names */ |
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424 | h=root; |
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425 | l=0; |
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426 | while (h!=NULL) |
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427 | { |
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428 | /* list is initialized with 0 => no need to clear anything */ |
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429 | L->m[l].rtyp=STRING_CMD; |
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430 | L->m[l].data=mstrdup(IDID(h)); |
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431 | l++; |
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432 | h=IDNEXT(h); |
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433 | } |
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434 | return L; |
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435 | } |
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436 | |
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437 | /* |
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438 | * move 'tomove' from root1 list to root2 list |
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439 | */ |
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440 | static void ipSwapId(idhdl tomove, idhdl &root1, idhdl &root2) |
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441 | { |
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442 | idhdl h; |
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443 | /* search 'tomove' in root2 : if found -> do nothing */ |
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444 | h=root2; |
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445 | while ((h!=NULL) && (h!=tomove)) h=IDNEXT(h); |
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446 | if (h!=NULL) return; |
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447 | /* search predecessor of h in root1, remove 'tomove' */ |
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448 | h=root1; |
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449 | if (tomove==h) |
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450 | { |
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451 | root1=IDNEXT(h); |
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452 | } |
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453 | else |
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454 | { |
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455 | while ((h!=NULL) && (IDNEXT(h)!=tomove)) h=IDNEXT(h); |
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456 | if (h==NULL) return; /* not in the list root1 -> do nothing */ |
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457 | IDNEXT(h)=IDNEXT(tomove); |
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458 | } |
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459 | /* add to root2 list */ |
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460 | IDNEXT(tomove)=root2; |
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461 | root2=tomove; |
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462 | } |
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463 | |
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464 | void ipMoveId(idhdl tomove) |
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465 | { |
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466 | if ((currRing!=NULL)&&(tomove!=NULL)) |
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467 | { |
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468 | if (((QRING_CMD!=IDTYP(tomove)) && (BEGIN_RING<IDTYP(tomove)) && (IDTYP(tomove)<END_RING)) |
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469 | || ((IDTYP(tomove)==LIST_CMD) && (lRingDependend(IDLIST(tomove))))) |
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470 | { |
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471 | /*move 'tomove' to ring id's*/ |
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472 | ipSwapId(tomove,idroot,currRing->idroot); |
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473 | } |
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474 | else |
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475 | { |
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476 | /*move 'tomove' to global id's*/ |
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477 | ipSwapId(tomove,currRing->idroot,idroot); |
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478 | } |
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479 | } |
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480 | } |
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481 | |
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482 | char * piProcinfo(procinfov pi, char *request) |
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483 | { |
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484 | if(pi == NULL) return "empty proc"; |
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485 | else if (strcmp(request, "libname") == 0) return pi->libname; |
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486 | else if (strcmp(request, "procname") == 0) return pi->procname; |
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487 | else if (strcmp(request, "type") == 0) { |
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488 | switch (pi->language) { |
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489 | case LANG_SINGULAR: return "singular"; break; |
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490 | case LANG_C: return "object"; break; |
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491 | case LANG_NONE: return "none"; break; |
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492 | default: return "unknow language"; |
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493 | } |
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494 | } else if (strcmp(request, "ref") == 0) { |
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495 | char p[8]; |
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496 | sprintf(p, "%d\0", pi->ref); |
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497 | return mstrdup(p); |
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498 | } |
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499 | |
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500 | } |
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501 | |
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502 | void piCleanUp(procinfov pi) |
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503 | { |
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504 | (pi->ref)--; |
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505 | if (pi->ref <= 0) |
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506 | { |
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507 | FreeL((ADDRESS)pi->libname); |
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508 | FreeL((ADDRESS)pi->procname); |
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509 | if( pi->language == LANG_SINGULAR) { |
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510 | FreeL((ADDRESS)pi->data.s.body); |
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511 | } |
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512 | if( pi->language == LANG_C) { |
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513 | } |
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514 | memset((void *) pi, 0, sizeof(procinfo)); |
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515 | pi->language=LANG_NONE; |
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516 | } |
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517 | } |
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518 | |
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519 | void piKill(procinfov pi) |
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520 | { |
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521 | piCleanUp(pi); |
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522 | if (pi->ref <= 0) |
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523 | Free((ADDRESS)pi, sizeof(procinfo)); |
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524 | } |
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525 | |
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