summaryrefslogtreecommitdiff
path: root/cfgscan.c
diff options
context:
space:
mode:
Diffstat (limited to 'cfgscan.c')
-rw-r--r--cfgscan.c386
1 files changed, 386 insertions, 0 deletions
diff --git a/cfgscan.c b/cfgscan.c
new file mode 100644
index 0000000..c99c53d
--- /dev/null
+++ b/cfgscan.c
@@ -0,0 +1,386 @@
+/* $Xorg: cfgscan.c,v 1.3 2000/08/17 19:54:49 cpqbld Exp $ */
+/************************************************************
+ Copyright (c) 1994 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.
+
+ ********************************************************/
+
+#include <stdio.h>
+#include <ctype.h>
+#include <X11/Xos.h>
+#include <X11/X.h>
+#include <X11/extensions/XKB.h>
+
+#include "tokens.h"
+
+FILE *yyin = stdin;
+
+static char scanFileBuf[1024];
+char * scanFile= scanFileBuf;
+int lineNum= 0;
+
+int scanInt;
+char *scanIntStr;
+int scanIntClass;
+
+char *scanStr = NULL;
+int scanStrLine= 0;
+
+#define BUFSIZE 512
+static int nInBuf = 0;
+static char buf[BUFSIZE];
+
+#ifdef DEBUG
+
+extern unsigned debugFlags;
+
+static char *
+tokText(tok)
+ int tok;
+{
+static char buf[32];
+
+ switch (tok) {
+ case END_OF_FILE: sprintf(buf, "END_OF_FILE");break;
+ case ERROR: sprintf(buf, "ERROR"); break;
+
+ case BELL: sprintf(buf, "BELL"); break;
+ case ACCESSX: sprintf(buf, "ACCESSX"); break;
+ case MESSAGE: sprintf(buf, "MESSAGE"); break;
+
+ case NONE: sprintf(buf, "NONE"); break;
+ case IGNORE: sprintf(buf, "IGNORE"); break;
+ case ECHO: sprintf(buf, "ECHO"); break;
+ case PRINT_EV: sprintf(buf, "PRINT_EV"); break;
+ case SHELL: sprintf(buf, "SHELL"); break;
+ case SOUND: sprintf(buf, "SOUND"); break;
+
+ case EQUALS: sprintf(buf, "EQUALS"); break;
+ case PLUS: sprintf(buf, "PLUS"); break;
+ case MINUS: sprintf(buf, "MINUS"); break;
+ case DIVIDE: sprintf(buf, "DIVIDE"); break;
+ case TIMES: sprintf(buf, "TIMES"); break;
+ case OBRACE: sprintf(buf, "OBRACE"); break;
+ case CBRACE: sprintf(buf, "CBRACE"); break;
+ case OPAREN: sprintf(buf, "OPAREN"); break;
+ case CPAREN: sprintf(buf, "CPAREN"); break;
+ case OBRACKET: sprintf(buf, "OBRACKET");break;
+ case CBRACKET: sprintf(buf, "CBRACKET");break;
+ case DOT: sprintf(buf, "DOT"); break;
+ case COMMA: sprintf(buf, "COMMA"); break;
+ case SEMI: sprintf(buf, "SEMI"); break;
+ case EXCLAM: sprintf(buf, "EXCLAM"); break;
+ case INVERT: sprintf(buf, "INVERT"); break;
+
+ case STRING: sprintf(buf, "STRING (%s)",scanStr); break;
+ case INTEGER: sprintf(buf, "INTEGER (0x%x)",scanInt); break;
+ case FLOAT: sprintf(buf, "FLOAT (%d.%d)",
+ scanInt/XkbGeomPtsPerMM,
+ scanInt%XkbGeomPtsPerMM);break;
+ case IDENT: sprintf(buf, "IDENT (%s)",scanStr); break;
+ case KEYNAME: sprintf(buf, "KEYNAME (%s)",scanStr); break;
+ default: sprintf(buf, "UNKNOWN"); break;
+ }
+ return buf;
+}
+#endif
+
+int
+setScanState(file,line)
+ char * file;
+ int line;
+{
+ if (file!=NULL)
+ strncpy(scanFile,file,1024);
+ if (line>=0)
+ lineNum= line;
+ return 1;
+}
+
+int
+yyGetString()
+{
+int ch;
+
+ nInBuf = 0;
+ while ( ((ch=getc(yyin))!=EOF) && (ch!='"') ) {
+ if ( ch == '\\' ) {
+ if ((ch = getc(yyin))!=EOF) {
+ if ( ch=='n' ) ch = '\n';
+ else if ( ch == 't' ) ch = '\t';
+ else if ( ch == 'v' ) ch = '\v';
+ else if ( ch == 'b' ) ch = '\b';
+ else if ( ch == 'r' ) ch = '\r';
+ else if ( ch == 'f' ) ch = '\f';
+ else if ( ch == 'e' ) ch = '\033';
+ else if ( ch == '0' ) {
+ int tmp,stop;
+ ch = stop = 0;
+ if (((tmp=getc(yyin))!=EOF) && (isdigit(tmp)) &&
+ (tmp!='8') && (tmp!='9')) {
+ ch= (ch*8)+(tmp-'0');
+ }
+ else {
+ stop= 1;
+ ungetc(tmp,yyin);
+ }
+ if ((!stop) && ((tmp=getc(yyin))!=EOF) && (isdigit(tmp)) &&
+ (tmp!='8') && (tmp!='9')) {
+ ch= (ch*8)+(tmp-'0');
+ }
+ else {
+ stop= 1;
+ ungetc(tmp,yyin);
+ }
+ if ((!stop) && ((tmp=getc(yyin))!=EOF) && (isdigit(tmp)) &&
+ (tmp!='8') && (tmp!='9')) {
+ ch= (ch*8)+(tmp-'0');
+ }
+ else {
+ stop= 1;
+ ungetc(tmp,yyin);
+ }
+ }
+ }
+ else return ERROR;
+ }
+
+ if ( nInBuf < BUFSIZE-1 )
+ buf[nInBuf++] = ch;
+ }
+ if ( ch == '"' ) {
+ buf[nInBuf++] = '\0';
+ if ( scanStr )
+ free( scanStr );
+ scanStr = (char *)uStringDup(buf);
+ scanStrLine = lineNum;
+ return STRING;
+ }
+ return ERROR;
+}
+
+int
+yyGetKeyName()
+{
+int ch;
+
+ nInBuf = 0;
+ while ( ((ch=getc(yyin))!=EOF) && (ch!='>') ) {
+ if ( ch == '\\' ) {
+ if ((ch = getc(yyin))!=EOF) {
+ if ( ch=='n' ) ch = '\n';
+ else if ( ch == 't' ) ch = '\t';
+ else if ( ch == 'v' ) ch = '\v';
+ else if ( ch == 'b' ) ch = '\b';
+ else if ( ch == 'r' ) ch = '\r';
+ else if ( ch == 'f' ) ch = '\f';
+ else if ( ch == 'e' ) ch = '\033';
+ else if ( ch == '0' ) {
+ int tmp,stop;
+ ch = stop = 0;
+ if (((tmp=getc(yyin))!=EOF) && (isdigit(tmp)) &&
+ (tmp!='8') && (tmp!='9')) {
+ ch= (ch*8)+(tmp-'0');
+ }
+ else {
+ stop= 1;
+ ungetc(tmp,yyin);
+ }
+ if ((!stop) && ((tmp=getc(yyin))!=EOF) && (isdigit(tmp)) &&
+ (tmp!='8') && (tmp!='9')) {
+ ch= (ch*8)+(tmp-'0');
+ }
+ else {
+ stop= 1;
+ ungetc(tmp,yyin);
+ }
+ if ((!stop) && ((tmp=getc(yyin))!=EOF) && (isdigit(tmp)) &&
+ (tmp!='8') && (tmp!='9')) {
+ ch= (ch*8)+(tmp-'0');
+ }
+ else {
+ stop= 1;
+ ungetc(tmp,yyin);
+ }
+ }
+ }
+ else return ERROR;
+ }
+
+ if ( nInBuf < BUFSIZE-1 )
+ buf[nInBuf++] = ch;
+ }
+ if (( ch == '>' )&&(nInBuf<5)) {
+ buf[nInBuf++] = '\0';
+ if ( scanStr )
+ free( scanStr );
+ scanStr = (char *)uStringDup(buf);
+ scanStrLine = lineNum;
+ return KEYNAME;
+ }
+ return ERROR;
+}
+
+struct _Keyword {
+ char *keyword;
+ int token;
+} keywords[] = {
+ { "bell", BELL },
+ { "accessx", ACCESSX },
+ { "message", MESSAGE },
+ { "none", NONE },
+ { "ignore", IGNORE },
+ { "echo", ECHO },
+ { "printevent", PRINT_EV },
+ { "shell", SHELL },
+ { "sound", SOUND }
+};
+int numKeywords = sizeof(keywords)/sizeof(struct _Keyword);
+
+int
+yyGetIdent(first)
+ int first;
+{
+int ch,i,found;
+int rtrn;
+
+ buf[0] = first; nInBuf = 1;
+ while ( ((ch=getc(yyin))!=EOF) && (isalnum(ch)||(ch=='_')) ) {
+ if ( nInBuf < BUFSIZE - 1 )
+ buf[nInBuf++] = ch;
+ }
+ buf[nInBuf++] = '\0';
+ found= 0;
+
+ for (i=0;(!found)&&(i<numKeywords);i++) {
+ if (uStrCaseCmp(buf,keywords[i].keyword)==0) {
+ rtrn= keywords[i].token;
+ found= 1;
+ }
+ }
+ if (!found) {
+ if ( scanStr )
+ free( scanStr );
+ scanStr = (char *)uStringDup(buf);
+ scanStrLine = lineNum;
+ rtrn = IDENT;
+ }
+
+ if ( (ch!=EOF) && (!isspace(ch)) )
+ ungetc( ch, yyin );
+ else if ( ch=='\n' )
+ lineNum++;
+
+ return rtrn;
+}
+
+int
+yyGetNumber(ch)
+ int ch;
+{
+int isFloat= 0;
+
+ buf[0]= ch;
+ nInBuf= 1;
+ while (((ch=getc(yyin))!=EOF)&&(isxdigit(ch)||((nInBuf==1)&&(ch=='x')))) {
+ buf[nInBuf++]= ch;
+ }
+ if (ch=='.') {
+ isFloat= 1;
+ buf[nInBuf++]= ch;
+ while (((ch=getc(yyin))!=EOF)&&(isxdigit(ch))) {
+ buf[nInBuf++]= ch;
+ }
+ }
+ buf[nInBuf++]= '\0';
+ if ((ch!=EOF)&&(!isspace(ch)))
+ ungetc( ch, yyin );
+
+ if (isFloat) {
+ float tmp;
+ if (sscanf(buf,"%g",&tmp)==1) {
+ scanInt= tmp*XkbGeomPtsPerMM;
+ return FLOAT;
+ }
+ }
+ else if ( sscanf(buf,"%i",&scanInt)==1 )
+ return INTEGER;
+ fprintf(stderr,"Malformed number %s\n",buf);
+ return ERROR;
+}
+
+int
+yylex()
+{
+int ch;
+int rtrn;
+
+ do {
+ ch = getc(yyin);
+ if ( ch == '\n' ) {
+ lineNum++;
+ }
+ else if ( ch=='/' ) { /* handle C++ style double-/ comments */
+ int newch= getc(yyin);
+ if (newch=='/') {
+ do {
+ ch= getc(yyin);
+ } while ((ch!='\n')&&(ch!=EOF));
+ lineNum++;
+ }
+ else if (newch!=EOF) {
+ ungetc(newch,yyin);
+ }
+ }
+ } while ((ch!=EOF)&&(isspace(ch)));
+ if ( ch == '=' ) rtrn = EQUALS;
+ else if ( ch == '+' ) rtrn = PLUS;
+ else if ( ch == '-' ) rtrn = MINUS;
+ else if ( ch == '/' ) rtrn = DIVIDE;
+ else if ( ch == '*' ) rtrn = TIMES;
+ else if ( ch == '{' ) rtrn = OBRACE;
+ else if ( ch == '}' ) rtrn = CBRACE;
+ else if ( ch == '(' ) rtrn = OPAREN;
+ else if ( ch == ')' ) rtrn = CPAREN;
+ else if ( ch == '[' ) rtrn = OBRACKET;
+ else if ( ch == ']' ) rtrn = CBRACKET;
+ else if ( ch == '.' ) rtrn = DOT;
+ else if ( ch == ',' ) rtrn = COMMA;
+ else if ( ch == ';' ) rtrn = SEMI;
+ else if ( ch == '!' ) rtrn = EXCLAM;
+ else if ( ch == '~' ) rtrn = INVERT;
+ else if ( ch == '"' ) rtrn = yyGetString();
+ else if ( ch == '<' ) rtrn = yyGetKeyName();
+ else if ( isalpha(ch) || (ch=='_')) rtrn = yyGetIdent(ch);
+ else if ( isdigit(ch) ) rtrn = yyGetNumber(ch);
+ else if ( ch == EOF ) rtrn = END_OF_FILE;
+ else {
+ fprintf(stderr,"Unexpected character %c (%d) in input stream\n",ch,ch);
+ rtrn = ERROR;
+ }
+#ifdef DEBUG
+ if (debugFlags&0x2)
+ fprintf(stderr,"scan: %s\n",tokText(rtrn));
+#endif
+ return rtrn;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-19 10:51:39 +0000