Revision 84f24c51
Von admin vor mehr als 6 Jahren hinzugefügt
| src/parser/db.c | ||
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int GWEN_DB_ReplaceVars(GWEN_DB_NODE *db, const char *s, GWEN_BUFFER *dbuf) {
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const char *p;
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p=s;
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while(*p) {
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if (*p=='$') {
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p++;
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if (*p=='$')
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GWEN_Buffer_AppendByte(dbuf, '$');
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else if (*p=='(') {
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const char *pStart;
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p++;
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pStart=p;
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while(*p && *p!=')')
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p++;
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if (*p!=')') {
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DBG_ERROR(GWEN_LOGDOMAIN, "Unterminated variable name in code");
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return GWEN_ERROR_BAD_DATA;
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}
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else {
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int len;
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char *name;
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const char *valueString;
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int valueInt;
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char numbuf[32];
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int rv;
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len=p-pStart;
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if (len<1) {
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DBG_ERROR(GWEN_LOGDOMAIN, "Empty variable name in code");
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return GWEN_ERROR_BAD_DATA;
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}
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name=(char*) malloc(len+1);
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assert(name);
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memmove(name, pStart, len);
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name[len]=0;
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switch(GWEN_DB_GetVariableType(db, name)) {
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case GWEN_DB_NodeType_ValueInt:
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valueInt=GWEN_DB_GetIntValue(db, name, 0, 0);
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rv=GWEN_Text_NumToString(valueInt, numbuf, sizeof(numbuf)-1, 0);
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if (rv>=0)
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GWEN_Buffer_AppendString(dbuf, numbuf);
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break;
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case GWEN_DB_NodeType_ValueChar:
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valueString=GWEN_DB_GetCharValue(db, name, 0, NULL);
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if (valueString)
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GWEN_Buffer_AppendString(dbuf, valueString);
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#if 0 /* just replace with empty value */
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else {
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GWEN_Buffer_AppendString(dbuf, " [__VALUE OF ");
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GWEN_Buffer_AppendString(dbuf, name);
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GWEN_Buffer_AppendString(dbuf, " WAS NOT SET__] ");
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}
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#endif
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break;
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default:
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break;
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}
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free(name);
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}
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}
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else {
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DBG_ERROR(GWEN_LOGDOMAIN, "Bad variable string in code");
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return GWEN_ERROR_BAD_DATA;
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}
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p++;
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}
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else {
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if (*p=='#') {
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/* let # lines begin on a new line */
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GWEN_Buffer_AppendByte(dbuf, '\n');
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GWEN_Buffer_AppendByte(dbuf, *p);
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/* skip introducing cross and copy all stuff until the next cross
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* upon which wa inject a newline (to make the preprocessor happy)
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*/
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p++;
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while(*p && *p!='#') {
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GWEN_Buffer_AppendByte(dbuf, *p);
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p++;
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}
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if (*p=='#') {
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GWEN_Buffer_AppendByte(dbuf, '\n');
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p++;
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}
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}
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else if (*p=='\\') {
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/* check for recognized control escapes */
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if (tolower(p[1])=='n') {
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GWEN_Buffer_AppendByte(dbuf, '\n');
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p+=2; /* skip introducing backslash and control character */
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}
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else if (tolower(p[1])=='t') {
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GWEN_Buffer_AppendByte(dbuf, '\t');
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p+=2; /* skip introducing backslash and control character */
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}
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else if (tolower(p[1])=='\\') {
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GWEN_Buffer_AppendByte(dbuf, '\\');
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p+=2; /* skip introducing backslash and control character */
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}
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else {
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/* no known escape character, just add literally */
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GWEN_Buffer_AppendByte(dbuf, *p);
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p++;
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}
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}
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else {
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GWEN_Buffer_AppendByte(dbuf, *p);
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p++;
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}
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}
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}
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return 0;
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}
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#include "dbrw.c"
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| src/parser/db.h | ||
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/*@}*/
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/** @name Higher Level Utility Functions
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*
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* These functions make use of GWEN_DB groups.
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*/
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/*@{*/
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/**
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* Read the given string and replace every variable in that string ( noted as "$(varname)") with the
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* value of the mentioned variable.
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*/
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GWENHYWFAR_API
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int GWEN_DB_ReplaceVars(GWEN_DB_NODE *db, const char *s, GWEN_BUFFER *dbuf);
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/*@}*/
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/*@}*/
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Auch abrufbar als: Unified diff
DB: Added function GWEN_DB_ReplaceVars().