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Diffstat (limited to 'xorg-server/xkb/maprules.c')
| -rw-r--r-- | xorg-server/xkb/maprules.c | 1300 |
1 files changed, 1300 insertions, 0 deletions
diff --git a/xorg-server/xkb/maprules.c b/xorg-server/xkb/maprules.c new file mode 100644 index 000000000..4c947f004 --- /dev/null +++ b/xorg-server/xkb/maprules.c @@ -0,0 +1,1300 @@ +/************************************************************ + Copyright (c) 1996 by Silicon Graphics Computer Systems, Inc. + + Permission to use, copy, modify, and distribute this + software and its documentation for any purpose and without + fee is hereby granted, provided that the above copyright + notice appear in all copies and that both that copyright + notice and this permission notice appear in supporting + documentation, and that the name of Silicon Graphics not be + used in advertising or publicity pertaining to distribution + of the software without specific prior written permission. + Silicon Graphics makes no representation about the suitability + of this software for any purpose. It is provided "as is" + without any express or implied warranty. + + SILICON GRAPHICS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS + SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY + AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL SILICON + GRAPHICS BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL + DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, + DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE + OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH + THE USE OR PERFORMANCE OF THIS SOFTWARE. + + ********************************************************/ + +#ifdef HAVE_DIX_CONFIG_H +#include <dix-config.h> +#endif + +#include <stdio.h> +#include <ctype.h> +#include <stdlib.h> + +#define X_INCLUDE_STRING_H +#define XOS_USE_NO_LOCKING +#include <X11/Xos_r.h> + +#define NEED_EVENTS +#include <X11/Xproto.h> +#include <X11/X.h> +#include <X11/Xos.h> +#include <X11/Xfuncs.h> +#include <X11/Xatom.h> +#include <X11/keysym.h> +#include "misc.h" +#include "inputstr.h" +#include "dix.h" +#include "xkbstr.h" +#define XKBSRV_NEED_FILE_FUNCS +#include <xkbsrv.h> + +/***====================================================================***/ + +#define DFLT_LINE_SIZE 128 + +typedef struct { + int line_num; + int sz_line; + int num_line; + char buf[DFLT_LINE_SIZE]; + char * line; +} InputLine; + +static void +InitInputLine(InputLine *line) +{ + line->line_num= 1; + line->num_line= 0; + line->sz_line= DFLT_LINE_SIZE; + line->line= line->buf; + return; +} + +static void +FreeInputLine(InputLine *line) +{ + if (line->line!=line->buf) + _XkbFree(line->line); + line->line_num= 1; + line->num_line= 0; + line->sz_line= DFLT_LINE_SIZE; + line->line= line->buf; + return; +} + +static int +InputLineAddChar(InputLine *line,int ch) +{ + if (line->num_line>=line->sz_line) { + if (line->line==line->buf) { + line->line= (char *)_XkbAlloc(line->sz_line*2); + memcpy(line->line,line->buf,line->sz_line); + } + else { + line->line=(char *)_XkbRealloc((char *)line->line,line->sz_line*2); + } + line->sz_line*= 2; + } + line->line[line->num_line++]= ch; + return ch; +} + +#define ADD_CHAR(l,c) ((l)->num_line<(l)->sz_line?\ + (int)((l)->line[(l)->num_line++]= (c)):\ + InputLineAddChar(l,c)) + +static Bool +GetInputLine(FILE *file,InputLine *line,Bool checkbang) +{ +int ch; +Bool endOfFile,spacePending,slashPending,inComment; + + endOfFile= False; + while ((!endOfFile)&&(line->num_line==0)) { + spacePending= slashPending= inComment= False; + while (((ch=getc(file))!='\n')&&(ch!=EOF)) { + if (ch=='\\') { + if ((ch=getc(file))==EOF) + break; + if (ch=='\n') { + inComment= False; + ch= ' '; + line->line_num++; + } + } + if (inComment) + continue; + if (ch=='/') { + if (slashPending) { + inComment= True; + slashPending= False; + } + else { + slashPending= True; + } + continue; + } + else if (slashPending) { + if (spacePending) { + ADD_CHAR(line,' '); + spacePending= False; + } + ADD_CHAR(line,'/'); + slashPending= False; + } + if (isspace(ch)) { + while (isspace(ch)&&(ch!='\n')&&(ch!=EOF)) { + ch= getc(file); + } + if (ch==EOF) + break; + if ((ch!='\n')&&(line->num_line>0)) + spacePending= True; + ungetc(ch,file); + } + else { + if (spacePending) { + ADD_CHAR(line,' '); + spacePending= False; + } + if (checkbang && ch=='!') { + if (line->num_line!=0) { + DebugF("The '!' legal only at start of line\n"); + DebugF("Line containing '!' ignored\n"); + line->num_line= 0; + inComment= 0; + break; + } + + } + ADD_CHAR(line,ch); + } + } + if (ch==EOF) + endOfFile= True; +/* else line->num_line++;*/ + } + if ((line->num_line==0)&&(endOfFile)) + return False; + ADD_CHAR(line,'\0'); + return True; +} + +/***====================================================================***/ + +#define MODEL 0 +#define LAYOUT 1 +#define VARIANT 2 +#define OPTION 3 +#define KEYCODES 4 +#define SYMBOLS 5 +#define TYPES 6 +#define COMPAT 7 +#define GEOMETRY 8 +#define KEYMAP 9 +#define MAX_WORDS 10 + +#define PART_MASK 0x000F +#define COMPONENT_MASK 0x03F0 + +static char * cname[MAX_WORDS] = { + "model", "layout", "variant", "option", + "keycodes", "symbols", "types", "compat", "geometry", "keymap" +}; + +typedef struct _RemapSpec { + int number; + int num_remap; + struct { + int word; + int index; + } remap[MAX_WORDS]; +} RemapSpec; + +typedef struct _FileSpec { + char * name[MAX_WORDS]; + struct _FileSpec * pending; +} FileSpec; + +typedef struct { + char * model; + char * layout[XkbNumKbdGroups+1]; + char * variant[XkbNumKbdGroups+1]; + char * options; +} XkbRF_MultiDefsRec, *XkbRF_MultiDefsPtr; + +#define NDX_BUFF_SIZE 4 + +/***====================================================================***/ + +static char* +get_index(char *str, int *ndx) +{ + char ndx_buf[NDX_BUFF_SIZE]; + char *end; + + if (*str != '[') { + *ndx = 0; + return str; + } + str++; + end = strchr(str, ']'); + if (end == NULL) { + *ndx = -1; + return str - 1; + } + if ( (end - str) >= NDX_BUFF_SIZE) { + *ndx = -1; + return end + 1; + } + strncpy(ndx_buf, str, end - str); + ndx_buf[end - str] = '\0'; + *ndx = atoi(ndx_buf); + return end + 1; +} + +static void +SetUpRemap(InputLine *line,RemapSpec *remap) +{ +char * tok,*str; +unsigned present, l_ndx_present, v_ndx_present; +register int i; +int len, ndx; +_Xstrtokparams strtok_buf; +Bool found; + + + l_ndx_present = v_ndx_present = present= 0; + str= &line->line[1]; + len = remap->number; + bzero((char *)remap,sizeof(RemapSpec)); + remap->number = len; + while ((tok=_XStrtok(str," ",strtok_buf))!=NULL) { + found= False; + str= NULL; + if (strcmp(tok,"=")==0) + continue; + for (i=0;i<MAX_WORDS;i++) { + len = strlen(cname[i]); + if (strncmp(cname[i],tok,len)==0) { + if(strlen(tok) > len) { + char *end = get_index(tok+len, &ndx); + if ((i != LAYOUT && i != VARIANT) || + *end != '\0' || ndx == -1) + break; + if (ndx < 1 || ndx > XkbNumKbdGroups) { + DebugF("Illegal %s index: %d\n", cname[i], ndx); + DebugF("Index must be in range 1..%d\n", + XkbNumKbdGroups); + break; + } + } else { + ndx = 0; + } + found= True; + if (present&(1<<i)) { + if ((i == LAYOUT && l_ndx_present&(1<<ndx)) || + (i == VARIANT && v_ndx_present&(1<<ndx)) ) { + DebugF("Component \"%s\" listed twice\n",tok); + DebugF("Second definition ignored\n"); + break; + } + } + present |= (1<<i); + if (i == LAYOUT) + l_ndx_present |= 1 << ndx; + if (i == VARIANT) + v_ndx_present |= 1 << ndx; + remap->remap[remap->num_remap].word= i; + remap->remap[remap->num_remap++].index= ndx; + break; + } + } + if (!found) { + fprintf(stderr,"Unknown component \"%s\" ignored\n",tok); + } + } + if ((present&PART_MASK)==0) { + unsigned mask= PART_MASK; + ErrorF("Mapping needs at least one of "); + for (i=0; (i<MAX_WORDS); i++) { + if ((1L<<i)&mask) { + mask&= ~(1L<<i); + if (mask) DebugF("\"%s,\" ",cname[i]); + else DebugF("or \"%s\"\n",cname[i]); + } + } + DebugF("Illegal mapping ignored\n"); + remap->num_remap= 0; + return; + } + if ((present&COMPONENT_MASK)==0) { + DebugF("Mapping needs at least one component\n"); + DebugF("Illegal mapping ignored\n"); + remap->num_remap= 0; + return; + } + if (((present&COMPONENT_MASK)&(1<<KEYMAP))&& + ((present&COMPONENT_MASK)!=(1<<KEYMAP))) { + DebugF("Keymap cannot appear with other components\n"); + DebugF("Illegal mapping ignored\n"); + remap->num_remap= 0; + return; + } + remap->number++; + return; +} + +static Bool +MatchOneOf(char *wanted,char *vals_defined) +{ +char *str,*next; +int want_len= strlen(wanted); + + for (str=vals_defined,next=NULL;str!=NULL;str=next) { + int len; + next= strchr(str,','); + if (next) { + len= next-str; + next++; + } + else { + len= strlen(str); + } + if ((len==want_len)&&(strncmp(wanted,str,len)==0)) + return True; + } + return False; +} + +/***====================================================================***/ + +static Bool +CheckLine( InputLine * line, + RemapSpec * remap, + XkbRF_RulePtr rule, + XkbRF_GroupPtr group) +{ +char * str,*tok; +register int nread, i; +FileSpec tmp; +_Xstrtokparams strtok_buf; +Bool append = False; + + if (line->line[0]=='!') { + if (line->line[1] == '$' || + (line->line[1] == ' ' && line->line[2] == '$')) { + char *gname = strchr(line->line, '$'); + char *words = strchr(gname, ' '); + if(!words) + return False; + *words++ = '\0'; + for (; *words; words++) { + if (*words != '=' && *words != ' ') + break; + } + if (*words == '\0') + return False; + group->name = _XkbDupString(gname); + group->words = _XkbDupString(words); + for (i = 1, words = group->words; *words; words++) { + if ( *words == ' ') { + *words++ = '\0'; + i++; + } + } + group->number = i; + return True; + } else { + SetUpRemap(line,remap); + return False; + } + } + + if (remap->num_remap==0) { + DebugF("Must have a mapping before first line of data\n"); + DebugF("Illegal line of data ignored\n"); + return False; + } + bzero((char *)&tmp,sizeof(FileSpec)); + str= line->line; + for (nread= 0;(tok=_XStrtok(str," ",strtok_buf))!=NULL;nread++) { + str= NULL; + if (strcmp(tok,"=")==0) { + nread--; + continue; + } + if (nread>remap->num_remap) { + DebugF("Too many words on a line\n"); + DebugF("Extra word \"%s\" ignored\n",tok); + continue; + } + tmp.name[remap->remap[nread].word]= tok; + if (*tok == '+' || *tok == '|') + append = True; + } + if (nread<remap->num_remap) { + DebugF("Too few words on a line: %s\n", line->line); + DebugF("line ignored\n"); + return False; + } + + rule->flags= 0; + rule->number = remap->number; + if (tmp.name[OPTION]) + rule->flags|= XkbRF_Option; + else if (append) + rule->flags|= XkbRF_Append; + else + rule->flags|= XkbRF_Normal; + rule->model= _XkbDupString(tmp.name[MODEL]); + rule->layout= _XkbDupString(tmp.name[LAYOUT]); + rule->variant= _XkbDupString(tmp.name[VARIANT]); + rule->option= _XkbDupString(tmp.name[OPTION]); + + rule->keycodes= _XkbDupString(tmp.name[KEYCODES]); + rule->symbols= _XkbDupString(tmp.name[SYMBOLS]); + rule->types= _XkbDupString(tmp.name[TYPES]); + rule->compat= _XkbDupString(tmp.name[COMPAT]); + rule->geometry= _XkbDupString(tmp.name[GEOMETRY]); + rule->keymap= NULL; + + rule->layout_num = rule->variant_num = 0; + for (i = 0; i < nread; i++) { + if (remap->remap[i].index) { + if (remap->remap[i].word == LAYOUT) + rule->layout_num = remap->remap[i].index; + if (remap->remap[i].word == VARIANT) + rule->variant_num = remap->remap[i].index; + } + } + return True; +} + +static char * +_Concat(char *str1,char *str2) +{ +int len; + + if ((!str1)||(!str2)) + return str1; + len= strlen(str1)+strlen(str2)+1; + str1= _XkbTypedRealloc(str1,len,char); + if (str1) + strcat(str1,str2); + return str1; +} + +static void +squeeze_spaces(char *p1) +{ + char *p2; + for (p2 = p1; *p2; p2++) { + *p1 = *p2; + if (*p1 != ' ') p1++; + } + *p1 = '\0'; +} + +static Bool +MakeMultiDefs(XkbRF_MultiDefsPtr mdefs, XkbRF_VarDefsPtr defs) +{ + + bzero((char *)mdefs,sizeof(XkbRF_MultiDefsRec)); + mdefs->model = defs->model; + mdefs->options = _XkbDupString(defs->options); + if (mdefs->options) squeeze_spaces(mdefs->options); + + if (defs->layout) { + if (!strchr(defs->layout, ',')) { + mdefs->layout[0] = defs->layout; + } else { + char *p; + int i; + mdefs->layout[1] = _XkbDupString(defs->layout); + if (mdefs->layout[1] == NULL) + return False; + squeeze_spaces(mdefs->layout[1]); + p = mdefs->layout[1]; + for (i = 2; i <= XkbNumKbdGroups; i++) { + if ((p = strchr(p, ','))) { + *p++ = '\0'; + mdefs->layout[i] = p; + } else { + break; + } + } + if (p && (p = strchr(p, ','))) + *p = '\0'; + } + } + + if (defs->variant) { + if (!strchr(defs->variant, ',')) { + mdefs->variant[0] = defs->variant; + } else { + char *p; + int i; + mdefs->variant[1] = _XkbDupString(defs->variant); + if (mdefs->variant[1] == NULL) + return False; + squeeze_spaces(mdefs->variant[1]); + p = mdefs->variant[1]; + for (i = 2; i <= XkbNumKbdGroups; i++) { + if ((p = strchr(p, ','))) { + *p++ = '\0'; + mdefs->variant[i] = p; + } else { + break; + } + } + if (p && (p = strchr(p, ','))) + *p = '\0'; + } + } + return True; +} + +static void +FreeMultiDefs(XkbRF_MultiDefsPtr defs) +{ + if (defs->options) _XkbFree(defs->options); + if (defs->layout[1]) _XkbFree(defs->layout[1]); + if (defs->variant[1]) _XkbFree(defs->variant[1]); +} + +static void +Apply(char *src, char **dst) +{ + if (src) { + if (*src == '+' || *src == '!') { + *dst= _Concat(*dst, src); + } else { + if (*dst == NULL) + *dst= _XkbDupString(src); + } + } +} + +static void +XkbRF_ApplyRule( XkbRF_RulePtr rule, + XkbComponentNamesPtr names) +{ + rule->flags&= ~XkbRF_PendingMatch; /* clear the flag because it's applied */ + + Apply(rule->keycodes, &names->keycodes); + Apply(rule->symbols, &names->symbols); + Apply(rule->types, &names->types); + Apply(rule->compat, &names->compat); + Apply(rule->geometry, &names->geometry); +} + +static Bool +CheckGroup( XkbRF_RulesPtr rules, + char * group_name, + char * name) +{ + int i; + char *p; + XkbRF_GroupPtr group; + + for (i = 0, group = rules->groups; i < rules->num_groups; i++, group++) { + if (! strcmp(group->name, group_name)) { + break; + } + } + if (i == rules->num_groups) + return False; + for (i = 0, p = group->words; i < group->number; i++, p += strlen(p)+1) { + if (! strcmp(p, name)) { + return True; + } + } + return False; +} + +static int +XkbRF_CheckApplyRule( XkbRF_RulePtr rule, + XkbRF_MultiDefsPtr mdefs, + XkbComponentNamesPtr names, + XkbRF_RulesPtr rules) +{ + Bool pending = False; + + if (rule->model != NULL) { + if(mdefs->model == NULL) + return 0; + if (strcmp(rule->model, "*") == 0) { + pending = True; + } else { + if (rule->model[0] == '$') { + if (!CheckGroup(rules, rule->model, mdefs->model)) + return 0; + } else { + if (strcmp(rule->model, mdefs->model) != 0) + return 0; + } + } + } + if (rule->option != NULL) { + if (mdefs->options == NULL) + return 0; + if ((!MatchOneOf(rule->option,mdefs->options))) + return 0; + } + + if (rule->layout != NULL) { + if(mdefs->layout[rule->layout_num] == NULL || + *mdefs->layout[rule->layout_num] == '\0') + return 0; + if (strcmp(rule->layout, "*") == 0) { + pending = True; + } else { + if (rule->layout[0] == '$') { + if (!CheckGroup(rules, rule->layout, + mdefs->layout[rule->layout_num])) + return 0; + } else { + if (strcmp(rule->layout, mdefs->layout[rule->layout_num]) != 0) + return 0; + } + } + } + if (rule->variant != NULL) { + if (mdefs->variant[rule->variant_num] == NULL || + *mdefs->variant[rule->variant_num] == '\0') + return 0; + if (strcmp(rule->variant, "*") == 0) { + pending = True; + } else { + if (rule->variant[0] == '$') { + if (!CheckGroup(rules, rule->variant, + mdefs->variant[rule->variant_num])) + return 0; + } else { + if (strcmp(rule->variant, + mdefs->variant[rule->variant_num]) != 0) + return 0; + } + } + } + if (pending) { + rule->flags|= XkbRF_PendingMatch; + return rule->number; + } + /* exact match, apply it now */ + XkbRF_ApplyRule(rule,names); + return rule->number; +} + +static void +XkbRF_ClearPartialMatches(XkbRF_RulesPtr rules) +{ +register int i; +XkbRF_RulePtr rule; + + for (i=0,rule=rules->rules;i<rules->num_rules;i++,rule++) { + rule->flags&= ~XkbRF_PendingMatch; + } +} + +static void +XkbRF_ApplyPartialMatches(XkbRF_RulesPtr rules,XkbComponentNamesPtr names) +{ +int i; +XkbRF_RulePtr rule; + + for (rule = rules->rules, i = 0; i < rules->num_rules; i++, rule++) { + if ((rule->flags&XkbRF_PendingMatch)==0) + continue; + XkbRF_ApplyRule(rule,names); + } +} + +static void +XkbRF_CheckApplyRules( XkbRF_RulesPtr rules, + XkbRF_MultiDefsPtr mdefs, + XkbComponentNamesPtr names, + int flags) +{ +int i; +XkbRF_RulePtr rule; +int skip; + + for (rule = rules->rules, i=0; i < rules->num_rules; rule++, i++) { + if ((rule->flags & flags) != flags) + continue; + skip = XkbRF_CheckApplyRule(rule, mdefs, names, rules); + if (skip && !(flags & XkbRF_Option)) { + for ( ;(i < rules->num_rules) && (rule->number == skip); + rule++, i++); + rule--; i--; + } + } +} + +/***====================================================================***/ + +static char * +XkbRF_SubstituteVars(char *name, XkbRF_MultiDefsPtr mdefs) +{ +char *str, *outstr, *orig, *var; +int len, ndx; + + orig= name; + str= index(name,'%'); + if (str==NULL) + return name; + len= strlen(name); + while (str!=NULL) { + char pfx= str[1]; + int extra_len= 0; + if ((pfx=='+')||(pfx=='|')||(pfx=='_')||(pfx=='-')) { + extra_len= 1; + str++; + } + else if (pfx=='(') { + extra_len= 2; + str++; + } + var = str + 1; + str = get_index(var + 1, &ndx); + if (ndx == -1) { + str = index(str,'%'); + continue; + } + if ((*var=='l') && mdefs->layout[ndx] && *mdefs->layout[ndx]) + len+= strlen(mdefs->layout[ndx])+extra_len; + else if ((*var=='m')&&mdefs->model) + len+= strlen(mdefs->model)+extra_len; + else if ((*var=='v') && mdefs->variant[ndx] && *mdefs->variant[ndx]) + len+= strlen(mdefs->variant[ndx])+extra_len; + if ((pfx=='(')&&(*str==')')) { + str++; + } + str= index(&str[0],'%'); + } + name= (char *)_XkbAlloc(len+1); + str= orig; + outstr= name; + while (*str!='\0') { + if (str[0]=='%') { + char pfx,sfx; + str++; + pfx= str[0]; + sfx= '\0'; + if ((pfx=='+')||(pfx=='|')||(pfx=='_')||(pfx=='-')) { + str++; + } + else if (pfx=='(') { + sfx= ')'; + str++; + } + else pfx= '\0'; + + var = str; + str = get_index(var + 1, &ndx); + if (ndx == -1) { + continue; + } + if ((*var=='l') && mdefs->layout[ndx] && *mdefs->layout[ndx]) { + if (pfx) *outstr++= pfx; + strcpy(outstr,mdefs->layout[ndx]); + outstr+= strlen(mdefs->layout[ndx]); + if (sfx) *outstr++= sfx; + } + else if ((*var=='m')&&(mdefs->model)) { + if (pfx) *outstr++= pfx; + strcpy(outstr,mdefs->model); + outstr+= strlen(mdefs->model); + if (sfx) *outstr++= sfx; + } + else if ((*var=='v') && mdefs->variant[ndx] && *mdefs->variant[ndx]) { + if (pfx) *outstr++= pfx; + strcpy(outstr,mdefs->variant[ndx]); + outstr+= strlen(mdefs->variant[ndx]); + if (sfx) *outstr++= sfx; + } + if ((pfx=='(')&&(*str==')')) + str++; + } + else { + *outstr++= *str++; + } + } + *outstr++= '\0'; + if (orig!=name) + _XkbFree(orig); + return name; +} + +/***====================================================================***/ + +Bool +XkbRF_GetComponents( XkbRF_RulesPtr rules, + XkbRF_VarDefsPtr defs, + XkbComponentNamesPtr names) +{ + XkbRF_MultiDefsRec mdefs; + + MakeMultiDefs(&mdefs, defs); + + bzero((char *)names,sizeof(XkbComponentNamesRec)); + XkbRF_ClearPartialMatches(rules); + XkbRF_CheckApplyRules(rules, &mdefs, names, XkbRF_Normal); + XkbRF_ApplyPartialMatches(rules, names); + XkbRF_CheckApplyRules(rules, &mdefs, names, XkbRF_Append); + XkbRF_ApplyPartialMatches(rules, names); + XkbRF_CheckApplyRules(rules, &mdefs, names, XkbRF_Option); + + if (names->keycodes) + names->keycodes= XkbRF_SubstituteVars(names->keycodes, &mdefs); + if (names->symbols) + names->symbols= XkbRF_SubstituteVars(names->symbols, &mdefs); + if (names->types) + names->types= XkbRF_SubstituteVars(names->types, &mdefs); + if (names->compat) + names->compat= XkbRF_SubstituteVars(names->compat, &mdefs); + if (names->geometry) + names->geometry= XkbRF_SubstituteVars(names->geometry, &mdefs); + if (names->keymap) + names->keymap= XkbRF_SubstituteVars(names->keymap, &mdefs); + + FreeMultiDefs(&mdefs); + return (names->keycodes && names->symbols && names->types && + names->compat && names->geometry ) || names->keymap; +} + +XkbRF_RulePtr +XkbRF_AddRule(XkbRF_RulesPtr rules) +{ + if (rules->sz_rules<1) { + rules->sz_rules= 16; + rules->num_rules= 0; + rules->rules= _XkbTypedCalloc(rules->sz_rules,XkbRF_RuleRec); + } + else if (rules->num_rules>=rules->sz_rules) { + rules->sz_rules*= 2; + rules->rules= _XkbTypedRealloc(rules->rules,rules->sz_rules, + XkbRF_RuleRec); + } + if (!rules->rules) { + rules->sz_rules= rules->num_rules= 0; + DebugF("Allocation failure in XkbRF_AddRule\n"); + return NULL; + } + bzero((char *)&rules->rules[rules->num_rules],sizeof(XkbRF_RuleRec)); + return &rules->rules[rules->num_rules++]; +} + +XkbRF_GroupPtr +XkbRF_AddGroup(XkbRF_RulesPtr rules) +{ + if (rules->sz_groups<1) { + rules->sz_groups= 16; + rules->num_groups= 0; + rules->groups= _XkbTypedCalloc(rules->sz_groups,XkbRF_GroupRec); + } + else if (rules->num_groups >= rules->sz_groups) { + rules->sz_groups *= 2; + rules->groups= _XkbTypedRealloc(rules->groups,rules->sz_groups, + XkbRF_GroupRec); + } + if (!rules->groups) { + rules->sz_groups= rules->num_groups= 0; + return NULL; + } + + bzero((char *)&rules->groups[rules->num_groups],sizeof(XkbRF_GroupRec)); + return &rules->groups[rules->num_groups++]; +} + +Bool +XkbRF_LoadRules(FILE *file, XkbRF_RulesPtr rules) +{ +InputLine line; +RemapSpec remap; +XkbRF_RuleRec trule,*rule; +XkbRF_GroupRec tgroup,*group; + + if (!(rules && file)) + return False; + bzero((char *)&remap,sizeof(RemapSpec)); + bzero((char *)&tgroup,sizeof(XkbRF_GroupRec)); + InitInputLine(&line); + while (GetInputLine(file,&line,True)) { + if (CheckLine(&line,&remap,&trule,&tgroup)) { + if (tgroup.number) { + if ((group= XkbRF_AddGroup(rules))!=NULL) { + *group= tgroup; + bzero((char *)&tgroup,sizeof(XkbRF_GroupRec)); + } + } else { + if ((rule= XkbRF_AddRule(rules))!=NULL) { + *rule= trule; + bzero((char *)&trule,sizeof(XkbRF_RuleRec)); + } + } + } + line.num_line= 0; + } + FreeInputLine(&line); + return True; +} + +Bool +XkbRF_LoadRulesByName(char *base,char *locale,XkbRF_RulesPtr rules) +{ +FILE * file; +char buf[PATH_MAX]; +Bool ok; + + if ((!base)||(!rules)) + return False; + if (locale) { + if (strlen(base)+strlen(locale)+2 > PATH_MAX) + return False; + sprintf(buf,"%s-%s", base, locale); + } + else { + if (strlen(base)+1 > PATH_MAX) + return False; + strcpy(buf,base); + } + + file= fopen(buf, "r"); + if ((!file)&&(locale)) { /* fallback if locale was specified */ + strcpy(buf,base); + file= fopen(buf, "r"); + } + if (!file) + return False; + ok= XkbRF_LoadRules(file,rules); + fclose(file); + return ok; +} + +/***====================================================================***/ + +#define HEAD_NONE 0 +#define HEAD_MODEL 1 +#define HEAD_LAYOUT 2 +#define HEAD_VARIANT 3 +#define HEAD_OPTION 4 +#define HEAD_EXTRA 5 + +XkbRF_VarDescPtr +XkbRF_AddVarDesc(XkbRF_DescribeVarsPtr vars) +{ + if (vars->sz_desc<1) { + vars->sz_desc= 16; + vars->num_desc= 0; + vars->desc= _XkbTypedCalloc(vars->sz_desc,XkbRF_VarDescRec); + } + else if (vars->num_desc>=vars->sz_desc) { + vars->sz_desc*= 2; + vars->desc= _XkbTypedRealloc(vars->desc,vars->sz_desc,XkbRF_VarDescRec); + } + if (!vars->desc) { + vars->sz_desc= vars->num_desc= 0; + DebugF("Allocation failure in XkbRF_AddVarDesc\n"); + return NULL; + } + vars->desc[vars->num_desc].name= NULL; + vars->desc[vars->num_desc].desc= NULL; + return &vars->desc[vars->num_desc++]; +} + +XkbRF_VarDescPtr +XkbRF_AddVarDescCopy(XkbRF_DescribeVarsPtr vars,XkbRF_VarDescPtr from) +{ +XkbRF_VarDescPtr nd; + + if ((nd=XkbRF_AddVarDesc(vars))!=NULL) { + nd->name= _XkbDupString(from->name); + nd->desc= _XkbDupString(from->desc); + } + return nd; +} + +XkbRF_DescribeVarsPtr +XkbRF_AddVarToDescribe(XkbRF_RulesPtr rules,char *name) +{ + if (rules->sz_extra<1) { + rules->num_extra= 0; + rules->sz_extra= 1; + rules->extra_names= _XkbTypedCalloc(rules->sz_extra,char *); + rules->extra= _XkbTypedCalloc(rules->sz_extra, XkbRF_DescribeVarsRec); + } + else if (rules->num_extra>=rules->sz_extra) { + rules->sz_extra*= 2; + rules->extra_names= _XkbTypedRealloc(rules->extra_names,rules->sz_extra, + char *); + rules->extra=_XkbTypedRealloc(rules->extra, rules->sz_extra, + XkbRF_DescribeVarsRec); + } + if ((!rules->extra_names)||(!rules->extra)) { + DebugF("allocation error in extra parts\n"); + rules->sz_extra= rules->num_extra= 0; + rules->extra_names= NULL; + rules->extra= NULL; + return NULL; + } + rules->extra_names[rules->num_extra]= _XkbDupString(name); + bzero(&rules->extra[rules->num_extra],sizeof(XkbRF_DescribeVarsRec)); + return &rules->extra[rules->num_extra++]; +} + +Bool +XkbRF_LoadDescriptions(FILE *file,XkbRF_RulesPtr rules) +{ +InputLine line; +XkbRF_VarDescRec tmp; +char *tok; +int len,headingtype,extra_ndx = 0; + + bzero((char *)&tmp, sizeof(XkbRF_VarDescRec)); + headingtype = HEAD_NONE; + InitInputLine(&line); + for ( ; GetInputLine(file,&line,False); line.num_line= 0) { + if (line.line[0]=='!') { + tok = strtok(&(line.line[1]), " \t"); + if (strcasecmp(tok,"model") == 0) + headingtype = HEAD_MODEL; + else if (strcasecmp(tok,"layout") == 0) + headingtype = HEAD_LAYOUT; + else if (strcasecmp(tok,"variant") == 0) + headingtype = HEAD_VARIANT; + else if (strcasecmp(tok,"option") == 0) + headingtype = HEAD_OPTION; + else { + int i; + headingtype = HEAD_EXTRA; + extra_ndx= -1; + for (i=0;(i<rules->num_extra)&&(extra_ndx<0);i++) { + if (!strcasecmp(tok,rules->extra_names[i])) + extra_ndx= i; + } + if (extra_ndx<0) { + XkbRF_DescribeVarsPtr var; + DebugF("Extra heading \"%s\" encountered\n",tok); + var= XkbRF_AddVarToDescribe(rules,tok); + if (var) + extra_ndx= var-rules->extra; + else headingtype= HEAD_NONE; + } + } + continue; + } + + if (headingtype == HEAD_NONE) { + DebugF("Must have a heading before first line of data\n"); + DebugF("Illegal line of data ignored\n"); + continue; + } + + len = strlen(line.line); + if ((tmp.name= strtok(line.line, " \t")) == NULL) { + DebugF("Huh? No token on line\n"); + DebugF("Illegal line of data ignored\n"); + continue; + } + if (strlen(tmp.name) == len) { + DebugF("No description found\n"); + DebugF("Illegal line of data ignored\n"); + continue; + } + + tok = line.line + strlen(tmp.name) + 1; + while ((*tok!='\n')&&isspace(*tok)) + tok++; + if (*tok == '\0') { + DebugF("No description found\n"); + DebugF("Illegal line of data ignored\n"); + continue; + } + tmp.desc= tok; + switch (headingtype) { + case HEAD_MODEL: + XkbRF_AddVarDescCopy(&rules->models,&tmp); + break; + case HEAD_LAYOUT: + XkbRF_AddVarDescCopy(&rules->layouts,&tmp); + break; + case HEAD_VARIANT: + XkbRF_AddVarDescCopy(&rules->variants,&tmp); + break; + case HEAD_OPTION: + XkbRF_AddVarDescCopy(&rules->options,&tmp); + break; + case HEAD_EXTRA: + XkbRF_AddVarDescCopy(&rules->extra[extra_ndx],&tmp); + break; + } + } + FreeInputLine(&line); + if ((rules->models.num_desc==0) && (rules->layouts.num_desc==0) && + (rules->variants.num_desc==0) && (rules->options.num_desc==0) && + (rules->num_extra==0)) { + return False; + } + return True; +} + +Bool +XkbRF_LoadDescriptionsByName(char *base,char *locale,XkbRF_RulesPtr rules) +{ +FILE * file; +char buf[PATH_MAX]; +Bool ok; + + if ((!base)||(!rules)) + return False; + if (locale) { + if (strlen(base)+strlen(locale)+6 > PATH_MAX) + return False; + sprintf(buf,"%s-%s.lst", base, locale); + } + else { + if (strlen(base)+5 > PATH_MAX) + return False; + sprintf(buf,"%s.lst", base); + } + + file= fopen(buf, "r"); + if ((!file)&&(locale)) { /* fallback if locale was specified */ + sprintf(buf,"%s.lst", base); + + file= fopen(buf, "r"); + } + if (!file) + return False; + ok= XkbRF_LoadDescriptions(file,rules); + fclose(file); + return ok; +} + +/***====================================================================***/ + +XkbRF_RulesPtr +XkbRF_Load(char *base,char *locale,Bool wantDesc,Bool wantRules) +{ +XkbRF_RulesPtr rules; + + if ((!base)||((!wantDesc)&&(!wantRules))) + return NULL; + if ((rules=_XkbTypedCalloc(1,XkbRF_RulesRec))==NULL) + return NULL; + if (wantDesc&&(!XkbRF_LoadDescriptionsByName(base,locale,rules))) { + XkbRF_Free(rules,True); + return NULL; + } + if (wantRules&&(!XkbRF_LoadRulesByName(base,locale,rules))) { + XkbRF_Free(rules,True); + return NULL; + } + return rules; +} + +XkbRF_RulesPtr +XkbRF_Create(int szRules,int szExtra) +{ +XkbRF_RulesPtr rules; + + if ((rules=_XkbTypedCalloc(1,XkbRF_RulesRec))==NULL) + return NULL; + if (szRules>0) { + rules->sz_rules= szRules; + rules->rules= _XkbTypedCalloc(rules->sz_rules,XkbRF_RuleRec); + if (!rules->rules) { + _XkbFree(rules); + return NULL; + } + } + if (szExtra>0) { + rules->sz_extra= szExtra; + rules->extra= _XkbTypedCalloc(rules->sz_extra,XkbRF_DescribeVarsRec); + if (!rules->extra) { + if (rules->rules) + _XkbFree(rules->rules); + _XkbFree(rules); + return NULL; + } + } + return rules; +} + +/***====================================================================***/ + +static void +XkbRF_ClearVarDescriptions(XkbRF_DescribeVarsPtr var) +{ +register int i; + + for (i=0;i<var->num_desc;i++) { + if (var->desc[i].name) + _XkbFree(var->desc[i].name); + if (var->desc[i].desc) + _XkbFree(var->desc[i].desc); + var->desc[i].name= var->desc[i].desc= NULL; + } + if (var->desc) + _XkbFree(var->desc); + var->desc= NULL; + return; +} + +void +XkbRF_Free(XkbRF_RulesPtr rules,Bool freeRules) +{ +int i; +XkbRF_RulePtr rule; +XkbRF_GroupPtr group; + + if (!rules) + return; + XkbRF_ClearVarDescriptions(&rules->models); + XkbRF_ClearVarDescriptions(&rules->layouts); + XkbRF_ClearVarDescriptions(&rules->variants); + XkbRF_ClearVarDescriptions(&rules->options); + if (rules->extra) { + for (i = 0; i < rules->num_extra; i++) { + XkbRF_ClearVarDescriptions(&rules->extra[i]); + } + _XkbFree(rules->extra); + rules->num_extra= rules->sz_extra= 0; + rules->extra= NULL; + } + if (rules->rules) { + for (i=0,rule=rules->rules;i<rules->num_rules;i++,rule++) { + if (rule->model) _XkbFree(rule->model); + if (rule->layout) _XkbFree(rule->layout); + if (rule->variant) _XkbFree(rule->variant); + if (rule->option) _XkbFree(rule->option); + if (rule->keycodes) _XkbFree(rule->keycodes); + if (rule->symbols) _XkbFree(rule->symbols); + if (rule->types) _XkbFree(rule->types); + if (rule->compat) _XkbFree(rule->compat); + if (rule->geometry) _XkbFree(rule->geometry); + bzero((char *)rule,sizeof(XkbRF_RuleRec)); + } + _XkbFree(rules->rules); + rules->num_rules= rules->sz_rules= 0; + rules->rules= NULL; + } + + if (rules->groups) { + for (i=0, group=rules->groups;i<rules->num_groups;i++,group++) { + if (group->name) _XkbFree(group->name); + if (group->words) _XkbFree(group->words); + } + _XkbFree(rules->groups); + rules->num_groups= 0; + rules->groups= NULL; + } + if (freeRules) + _XkbFree(rules); + return; +} |