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https://github.com/ZDoom/raze-gles.git
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scriptfile.[cpp|h] cleanups
git-svn-id: https://svn.eduke32.com/eduke32@6299 1a8010ca-5511-0410-912e-c29ae57300e0
This commit is contained in:
terminx
parent
f490e5b2cb
commit
ee367baaea
2 changed files with 106 additions and 79 deletions
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@ -21,14 +21,14 @@ char *scriptfile_gettoken(scriptfile *sf);
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int32_t scriptfile_getnumber(scriptfile *sf, int32_t *num);
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int32_t scriptfile_getdouble(scriptfile *sf, double *num);
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int32_t scriptfile_getstring(scriptfile *sf, char **st);
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int32_t scriptfile_getsymbol(scriptfile *sf, int32_t *num);
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int scriptfile_getsymbol(scriptfile *sf, int32_t *num);
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int32_t scriptfile_getlinum(const scriptfile *sf, const char *ptr);
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int32_t scriptfile_getbraces(scriptfile *sf, char **braceend);
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scriptfile *scriptfile_fromfile(const char *fn);
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scriptfile *scriptfile_fromstring(const char *string);
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void scriptfile_close(scriptfile *sf);
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int32_t scriptfile_eof(scriptfile *sf);
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int scriptfile_eof(scriptfile *sf);
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int32_t scriptfile_getsymbolvalue(char const *name, int32_t *val);
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int32_t scriptfile_addsymbolvalue(char const *name, int32_t val);
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@ -13,21 +13,30 @@
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#define ISWS(x) ((x == ' ') || (x == '\t') || (x == '\r') || (x == '\n'))
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static void skipoverws(scriptfile *sf) { if ((sf->textptr < sf->eof) && (!sf->textptr[0])) sf->textptr++; }
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static void skipovertoken(scriptfile *sf) { while ((sf->textptr < sf->eof) && (sf->textptr[0])) sf->textptr++; }
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static inline void skipoverws(scriptfile *sf) { if ((sf->textptr < sf->eof) && (!sf->textptr[0])) sf->textptr++; }
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static inline void skipovertoken(scriptfile *sf) { while ((sf->textptr < sf->eof) && (sf->textptr[0])) sf->textptr++; }
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char *scriptfile_gettoken(scriptfile *sf)
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{
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char *start;
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if (scriptfile_eof(sf)) return NULL;
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skipoverws(sf);
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if (sf->textptr >= sf->eof) return NULL;
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start = sf->ltextptr = sf->textptr;
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char *start = sf->ltextptr = sf->textptr;
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skipovertoken(sf);
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return start;
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}
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static int scriptfile_eof_error(scriptfile *sf)
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{
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if (scriptfile_eof(sf))
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{
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initprintf("Error on line %s:%d: unexpected eof\n", sf->filename, scriptfile_getlinum(sf, sf->textptr));
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return -1;
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}
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return 0;
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}
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int32_t scriptfile_getstring(scriptfile *sf, char **retst)
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{
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(*retst) = scriptfile_gettoken(sf);
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@ -41,14 +50,9 @@ int32_t scriptfile_getstring(scriptfile *sf, char **retst)
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int32_t scriptfile_getnumber(scriptfile *sf, int32_t *num)
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{
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skipoverws(sf);
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if (sf->textptr >= sf->eof)
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{
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initprintf("Error on line %s:%d: unexpected eof\n",sf->filename,scriptfile_getlinum(sf,sf->textptr));
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return -1;
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}
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if (scriptfile_eof_error(sf)) return -1;
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while ((sf->textptr[0] == '0') && (sf->textptr[1] >= '0') && (sf->textptr[1] <= '9'))
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while ((sf->textptr[0] == '0') && isdigit(sf->textptr[1]))
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sf->textptr++; //hack to treat octal numbers like decimal
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sf->ltextptr = sf->textptr;
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@ -75,7 +79,7 @@ static double parsedouble(char *ptr, char **end)
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else if (*p == '+') p++;
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for (;; p++)
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{
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if (*p >= '0' && *p <= '9')
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if (isdigit(*p))
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{
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dig = *p - '0';
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if (beforedecimal) num = num * 10.0 + dig;
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@ -107,12 +111,8 @@ static double parsedouble(char *ptr, char **end)
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int32_t scriptfile_getdouble(scriptfile *sf, double *num)
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{
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skipoverws(sf);
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if (sf->textptr >= sf->eof)
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{
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initprintf("Error on line %s:%d: unexpected eof\n",sf->filename,scriptfile_getlinum(sf,sf->textptr));
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if (scriptfile_eof_error(sf))
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return -1;
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}
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sf->ltextptr = sf->textptr;
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@ -130,21 +130,20 @@ int32_t scriptfile_getdouble(scriptfile *sf, double *num)
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return 0;
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}
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int32_t scriptfile_getsymbol(scriptfile *sf, int32_t *num)
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int scriptfile_getsymbol(scriptfile *sf, int32_t *num)
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{
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char *t, *e;
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int32_t v;
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t = scriptfile_gettoken(sf);
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char *t = scriptfile_gettoken(sf);
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if (!t) return -1;
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v = Bstrtol(t, &e, 10);
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char * e;
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int32_t v = Bstrtol(t, &e, 10);
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if (*e)
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{
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// looks like a string, so find it in the symbol table
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if (scriptfile_getsymbolvalue(t, num)) return 0;
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initprintf("Error on line %s:%d: expecting symbol, got \"%s\"\n", sf->filename, scriptfile_getlinum(sf, sf->ltextptr), t);
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return -2; // not found
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return -2;
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}
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*num = v;
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@ -153,29 +152,30 @@ int32_t scriptfile_getsymbol(scriptfile *sf, int32_t *num)
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int32_t scriptfile_getbraces(scriptfile *sf, char **braceend)
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{
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int32_t bracecnt;
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char *bracestart;
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skipoverws(sf);
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if (sf->textptr >= sf->eof)
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{
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initprintf("Error on line %s:%d: unexpected eof\n",sf->filename,scriptfile_getlinum(sf,sf->textptr));
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if (scriptfile_eof_error(sf))
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return -1;
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}
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if (sf->textptr[0] != '{')
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{
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initprintf("Error on line %s:%d: expecting '{'\n",sf->filename,scriptfile_getlinum(sf,sf->textptr));
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return -1;
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}
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bracestart = ++sf->textptr; bracecnt = 1;
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while (1)
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char *bracestart = ++sf->textptr;
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int bracecnt = 1;
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do
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{
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if (sf->textptr >= sf->eof) return 0;
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if (sf->textptr[0] == '{') bracecnt++;
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if (sf->textptr[0] == '}') { bracecnt--; if (!bracecnt) break; }
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if (sf->textptr >= sf->eof)
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return 0;
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else if (sf->textptr[0] == '{')
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bracecnt++;
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else if (sf->textptr[0] == '}')
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if (!(--bracecnt))
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break;
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sf->textptr++;
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}
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} while (1);
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(*braceend) = sf->textptr;
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sf->textptr = bracestart;
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return 0;
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@ -206,9 +206,22 @@ void scriptfile_preparse(scriptfile *sf, char *tx, int32_t flen)
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for (i=0; i<flen; i++)
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{
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//detect all 4 types of carriage return (\r, \n, \r\n, \n\r :)
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cr=0; if (tx[i] == '\r') { i += (tx[i+1] == '\n'); cr = 1; }
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else if (tx[i] == '\n') { i += (tx[i+1] == '\r'); cr = 1; }
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if (cr) { numcr++; continue; }
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cr = 0;
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if (tx[i] == '\r')
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{
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i += (tx[i + 1] == '\n');
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cr = 1;
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}
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else if (tx[i] == '\n')
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{
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i += (tx[i + 1] == '\r');
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cr = 1;
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}
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if (cr)
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{
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numcr++;
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continue;
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}
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}
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sf->linenum = numcr;
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@ -219,8 +232,17 @@ void scriptfile_preparse(scriptfile *sf, char *tx, int32_t flen)
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for (i=0; i<flen; i++)
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{
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//detect all 4 types of carriage return (\r, \n, \r\n, \n\r :)
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cr=0; if (tx[i] == '\r') { i += (tx[i+1] == '\n'); cr = 1; }
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else if (tx[i] == '\n') { i += (tx[i+1] == '\r'); cr = 1; }
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cr = 0;
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if (tx[i] == '\r')
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{
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i += (tx[i + 1] == '\n');
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cr = 1;
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}
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else if (tx[i] == '\n')
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{
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i += (tx[i + 1] == '\r');
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cr = 1;
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}
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if (cr)
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{
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//Remember line numbers by storing the byte index at the start of each line
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@ -230,13 +252,29 @@ void scriptfile_preparse(scriptfile *sf, char *tx, int32_t flen)
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ws = 1; continue; //strip CR/LF
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}
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if ((!inquote) && ((tx[i] == ' ') || (tx[i] == '\t'))) { ws = 1; continue; } //strip Space/Tab
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if ((tx[i] == '/') && (tx[i+1] == '/') && (!cs)) cs = 1;
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if ((tx[i] == '/') && (tx[i+1] == '*') && (!cs)) { ws = 1; cs = 2; }
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if ((tx[i] == '*') && (tx[i+1] == '/') && (cs == 2)) { cs = 0; i++; continue; }
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if (cs) continue;
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if ((!inquote) && ((tx[i] == ' ') || (tx[i] == '\t')))
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{
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ws = 1;
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continue;
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} // strip Space/Tab
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if ((tx[i] == '/') && (tx[i + 1] == '/') && (!cs))
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cs = 1;
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if ((tx[i] == '/') && (tx[i + 1] == '*') && (!cs))
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{
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ws = 1;
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cs = 2;
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}
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if ((tx[i] == '*') && (tx[i + 1] == '/') && (cs == 2))
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{
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cs = 0;
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i++;
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continue;
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}
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if (cs)
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continue;
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if (ws) { tx[nflen++] = 0; ws = 0; }
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if (ws)
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tx[nflen++] = ws = 0;
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//quotes inside strings: \"
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if ((tx[i] == '\\') && (tx[i+1] == '\"')) { i++; tx[nflen++] = '\"'; continue; }
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@ -262,24 +300,19 @@ void scriptfile_preparse(scriptfile *sf, char *tx, int32_t flen)
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scriptfile *scriptfile_fromfile(const char *fn)
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{
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int32_t fp;
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scriptfile *sf;
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char *tx;
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uint32_t flen;
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int32_t fp = kopen4load(fn, 0);
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if (fp < 0) return nullptr;
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fp = kopen4load(fn,0);
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if (fp<0) return NULL;
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uint32_t flen = kfilelength(fp);
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char * tx = (char *)Xmalloc(flen + 2);
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flen = kfilelength(fp);
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tx = (char *)Xmalloc(flen + 2);
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sf = (scriptfile *)Xmalloc(sizeof(scriptfile));
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scriptfile *sf = (scriptfile *)Xmalloc(sizeof(scriptfile));
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kread(fp, tx, flen);
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tx[flen] = tx[flen+1] = 0;
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kclose(fp);
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tx[flen] = tx[flen+1] = 0;
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scriptfile_preparse(sf,tx,flen);
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sf->filename = Xstrdup(fn);
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@ -288,17 +321,12 @@ scriptfile *scriptfile_fromfile(const char *fn)
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scriptfile *scriptfile_fromstring(const char *string)
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{
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scriptfile *sf;
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char *tx;
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uint32_t flen;
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if (!string) return nullptr;
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if (!string) return NULL;
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uint32_t flen = Bstrlen(string);
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char * tx = (char *)Xmalloc(flen + 2);
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flen = strlen(string);
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tx = (char *)Xmalloc(flen + 2);
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sf = (scriptfile *)Xmalloc(sizeof(scriptfile));
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scriptfile *sf = (scriptfile *)Xmalloc(sizeof(scriptfile));
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Bmemcpy(tx, string, flen);
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tx[flen] = tx[flen+1] = 0;
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@ -318,11 +346,10 @@ void scriptfile_close(scriptfile *sf)
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Bfree(sf);
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}
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int32_t scriptfile_eof(scriptfile *sf)
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int scriptfile_eof(scriptfile *sf)
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{
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skipoverws(sf);
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if (sf->textptr >= sf->eof) return 1;
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return 0;
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return !!(sf->textptr >= sf->eof);
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}
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#define SYMBTABSTARTSIZE 256
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