void lexerror(lex_file *lex, const char *fmt, ...)
{
- va_list ap;
+ va_list ap;
- if (lex)
- printf("error %s:%lu: ", lex->name, (unsigned long)lex->sline);
- else
- printf("error: ");
+ if (lex)
+ printf("error %s:%lu: ", lex->name, (unsigned long)lex->sline);
+ else
+ printf("error: ");
- va_start(ap, fmt);
- vprintf(fmt, ap);
- va_end(ap);
+ va_start(ap, fmt);
+ vprintf(fmt, ap);
+ va_end(ap);
- printf("\n");
+ printf("\n");
}
void lexwarn(lex_file *lex, int warn, const char *fmt, ...)
{
- va_list ap;
+ va_list ap;
- if (!OPTS_WARN(warn))
- return;
+ if (!OPTS_WARN(warn))
+ return;
- if (lex)
- printf("warning %s:%lu: ", lex->name, (unsigned long)lex->sline);
- else
- printf("warning: ");
+ if (lex)
+ printf("warning %s:%lu: ", lex->name, (unsigned long)lex->sline);
+ else
+ printf("warning: ");
- va_start(ap, fmt);
- vprintf(fmt, ap);
- va_end(ap);
+ va_start(ap, fmt);
+ vprintf(fmt, ap);
+ va_end(ap);
- printf("\n");
+ printf("\n");
}
token* token_new()
{
- token *tok = (token*)mem_a(sizeof(token));
- if (!tok)
- return NULL;
- memset(tok, 0, sizeof(*tok));
- return tok;
+ token *tok = (token*)mem_a(sizeof(token));
+ if (!tok)
+ return NULL;
+ memset(tok, 0, sizeof(*tok));
+ return tok;
}
void token_delete(token *self)
{
- if (self->next && self->next->prev == self)
- self->next->prev = self->prev;
- if (self->prev && self->prev->next == self)
- self->prev->next = self->next;
- MEM_VECTOR_CLEAR(self, value);
- mem_d(self);
+ if (self->next && self->next->prev == self)
+ self->next->prev = self->prev;
+ if (self->prev && self->prev->next == self)
+ self->prev->next = self->next;
+ MEM_VECTOR_CLEAR(self, value);
+ mem_d(self);
}
token* token_copy(const token *cp)
{
- token* self = token_new();
- if (!self)
- return NULL;
- /* copy the value */
- self->value_alloc = cp->value_count + 1;
- self->value_count = cp->value_count;
- self->value = (char*)mem_a(self->value_alloc);
- if (!self->value) {
- mem_d(self);
- return NULL;
- }
- memcpy(self->value, cp->value, cp->value_count);
- self->value[self->value_alloc-1] = 0;
-
- /* rest */
- self->ctx = cp->ctx;
- self->ttype = cp->ttype;
- memcpy(&self->constval, &cp->constval, sizeof(self->constval));
- return self;
+ token* self = token_new();
+ if (!self)
+ return NULL;
+ /* copy the value */
+ self->value_alloc = cp->value_count + 1;
+ self->value_count = cp->value_count;
+ self->value = (char*)mem_a(self->value_alloc);
+ if (!self->value) {
+ mem_d(self);
+ return NULL;
+ }
+ memcpy(self->value, cp->value, cp->value_count);
+ self->value[self->value_alloc-1] = 0;
+
+ /* rest */
+ self->ctx = cp->ctx;
+ self->ttype = cp->ttype;
+ memcpy(&self->constval, &cp->constval, sizeof(self->constval));
+ return self;
}
void token_delete_all(token *t)
{
- token *n;
+ token *n;
- do {
- n = t->next;
- token_delete(t);
- t = n;
- } while(t);
+ do {
+ n = t->next;
+ token_delete(t);
+ t = n;
+ } while(t);
}
token* token_copy_all(const token *cp)
{
- token *cur;
- token *out;
-
- out = cur = token_copy(cp);
- if (!out)
- return NULL;
-
- while (cp->next) {
- cp = cp->next;
- cur->next = token_copy(cp);
- if (!cur->next) {
- token_delete_all(out);
- return NULL;
- }
- cur->next->prev = cur;
- cur = cur->next;
- }
-
- return out;
+ token *cur;
+ token *out;
+
+ out = cur = token_copy(cp);
+ if (!out)
+ return NULL;
+
+ while (cp->next) {
+ cp = cp->next;
+ cur->next = token_copy(cp);
+ if (!cur->next) {
+ token_delete_all(out);
+ return NULL;
+ }
+ cur->next->prev = cur;
+ cur = cur->next;
+ }
+
+ return out;
}
lex_file* lex_open(const char *file)
{
- lex_file *lex;
- FILE *in = util_fopen(file, "rb");
+ lex_file *lex;
+ FILE *in = util_fopen(file, "rb");
- if (!in) {
- lexerror(NULL, "open failed: '%s'\n", file);
- return NULL;
- }
+ if (!in) {
+ lexerror(NULL, "open failed: '%s'\n", file);
+ return NULL;
+ }
- lex = (lex_file*)mem_a(sizeof(*lex));
- if (!lex) {
- fclose(in);
- lexerror(NULL, "out of memory\n");
- return NULL;
- }
+ lex = (lex_file*)mem_a(sizeof(*lex));
+ if (!lex) {
+ fclose(in);
+ lexerror(NULL, "out of memory\n");
+ return NULL;
+ }
- memset(lex, 0, sizeof(*lex));
+ memset(lex, 0, sizeof(*lex));
- lex->file = in;
- lex->name = util_strdup(file);
- lex->line = 1; /* we start counting at 1 */
+ lex->file = in;
+ lex->name = util_strdup(file);
+ lex->line = 1; /* we start counting at 1 */
- lex->peekpos = 0;
+ lex->peekpos = 0;
- return lex;
+ return lex;
}
void lex_close(lex_file *lex)
{
- if (lex->file)
- fclose(lex->file);
- if (lex->tok)
- token_delete(lex->tok);
- mem_d(lex->name);
- mem_d(lex);
+ if (lex->file)
+ fclose(lex->file);
+ if (lex->tok)
+ token_delete(lex->tok);
+ mem_d(lex->name);
+ mem_d(lex);
}
/* Get or put-back data
*/
static int lex_getch(lex_file *lex)
{
- int ch;
-
- if (lex->peekpos) {
- lex->peekpos--;
- if (lex->peek[lex->peekpos] == '\n')
- lex->line++;
- return lex->peek[lex->peekpos];
- }
-
- ch = fgetc(lex->file);
- if (ch == '\n')
- lex->line++;
- return ch;
+ int ch;
+
+ if (lex->peekpos) {
+ lex->peekpos--;
+ if (lex->peek[lex->peekpos] == '\n')
+ lex->line++;
+ return lex->peek[lex->peekpos];
+ }
+
+ ch = fgetc(lex->file);
+ if (ch == '\n')
+ lex->line++;
+ return ch;
}
static void lex_ungetch(lex_file *lex, int ch)
{
- lex->peek[lex->peekpos++] = ch;
- if (ch == '\n')
- lex->line--;
+ lex->peek[lex->peekpos++] = ch;
+ if (ch == '\n')
+ lex->line--;
}
/* classify characters
/* Idents are alphanumberic, but they start with alpha or _ */
static bool isident_start(int ch)
{
- return isalpha(ch) || ch == '_';
+ return isalpha(ch) || ch == '_';
}
static bool isident(int ch)
{
- return isident_start(ch) || isdigit(ch);
+ return isident_start(ch) || isdigit(ch);
}
/* isxdigit_only is used when we already know it's not a digit
*/
static bool isxdigit_only(int ch)
{
- return (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F');
+ return (ch >= 'a' && ch <= 'f') || (ch >= 'A' && ch <= 'F');
}
/* Skip whitespace and comments and return the first
*/
static int lex_skipwhite(lex_file *lex)
{
- int ch = 0;
-
- do
- {
- ch = lex_getch(lex);
- while (ch != EOF && isspace(ch)) ch = lex_getch(lex);
-
- if (ch == '/') {
- ch = lex_getch(lex);
- if (ch == '/')
- {
- /* one line comment */
- ch = lex_getch(lex);
-
- /* check for special: '/', '/', '*', '/' */
- if (ch == '*') {
- ch = lex_getch(lex);
- if (ch == '/') {
- ch = ' ';
- continue;
- }
- }
-
- while (ch != EOF && ch != '\n') {
- ch = lex_getch(lex);
- }
- continue;
- }
- if (ch == '*')
- {
- /* multiline comment */
- while (ch != EOF)
- {
- ch = lex_getch(lex);
- if (ch == '*') {
- ch = lex_getch(lex);
- if (ch == '/') {
- ch = lex_getch(lex);
- break;
- }
- }
- }
- if (ch == '/') /* allow *//* direct following comment */
- {
- lex_ungetch(lex, ch);
- ch = ' '; /* cause TRUE in the isspace check */
- }
- continue;
- }
- /* Otherwise roll back to the slash and break out of the loop */
- lex_ungetch(lex, ch);
- ch = '/';
- break;
- }
- } while (ch != EOF && isspace(ch));
-
- return ch;
+ int ch = 0;
+
+ do
+ {
+ ch = lex_getch(lex);
+ while (ch != EOF && isspace(ch)) ch = lex_getch(lex);
+
+ if (ch == '/') {
+ ch = lex_getch(lex);
+ if (ch == '/')
+ {
+ /* one line comment */
+ ch = lex_getch(lex);
+
+ /* check for special: '/', '/', '*', '/' */
+ if (ch == '*') {
+ ch = lex_getch(lex);
+ if (ch == '/') {
+ ch = ' ';
+ continue;
+ }
+ }
+
+ while (ch != EOF && ch != '\n') {
+ ch = lex_getch(lex);
+ }
+ continue;
+ }
+ if (ch == '*')
+ {
+ /* multiline comment */
+ while (ch != EOF)
+ {
+ ch = lex_getch(lex);
+ if (ch == '*') {
+ ch = lex_getch(lex);
+ if (ch == '/') {
+ ch = lex_getch(lex);
+ break;
+ }
+ }
+ }
+ if (ch == '/') /* allow *//* direct following comment */
+ {
+ lex_ungetch(lex, ch);
+ ch = ' '; /* cause TRUE in the isspace check */
+ }
+ continue;
+ }
+ /* Otherwise roll back to the slash and break out of the loop */
+ lex_ungetch(lex, ch);
+ ch = '/';
+ break;
+ }
+ } while (ch != EOF && isspace(ch));
+
+ return ch;
}
/* Append a character to the token buffer */
static bool GMQCC_WARN lex_tokench(lex_file *lex, int ch)
{
- if (!token_value_add(lex->tok, ch)) {
- lexerror(lex, "out of memory");
- return false;
- }
- return true;
+ if (!token_value_add(lex->tok, ch)) {
+ lexerror(lex, "out of memory");
+ return false;
+ }
+ return true;
}
/* Append a trailing null-byte */
static bool GMQCC_WARN lex_endtoken(lex_file *lex)
{
- if (!token_value_add(lex->tok, 0)) {
- lexerror(lex, "out of memory");
- return false;
- }
- lex->tok->value_count--;
- return true;
+ if (!token_value_add(lex->tok, 0)) {
+ lexerror(lex, "out of memory");
+ return false;
+ }
+ lex->tok->value_count--;
+ return true;
}
/* Get a token */
static bool GMQCC_WARN lex_finish_ident(lex_file *lex)
{
- int ch;
+ int ch;
- ch = lex_getch(lex);
- while (ch != EOF && isident(ch))
- {
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- ch = lex_getch(lex);
- }
+ ch = lex_getch(lex);
+ while (ch != EOF && isident(ch))
+ {
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ ch = lex_getch(lex);
+ }
- /* last ch was not an ident ch: */
- lex_ungetch(lex, ch);
+ /* last ch was not an ident ch: */
+ lex_ungetch(lex, ch);
- return true;
+ return true;
}
/* read one ident for the frame list */
static int GMQCC_WARN lex_finish_string(lex_file *lex, int quote)
{
- int ch = 0;
-
- while (ch != EOF)
- {
- ch = lex_getch(lex);
- if (ch == quote)
- return TOKEN_STRINGCONST;
-
- if (ch == '\\') {
- ch = lex_getch(lex);
- if (ch == EOF) {
- lexerror(lex, "unexpected end of file");
- lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
- return (lex->tok->ttype = TOKEN_ERROR);
- }
+ int ch = 0;
+
+ while (ch != EOF)
+ {
+ ch = lex_getch(lex);
+ if (ch == quote)
+ return TOKEN_STRINGCONST;
+
+ if (ch == '\\') {
+ ch = lex_getch(lex);
+ if (ch == EOF) {
+ lexerror(lex, "unexpected end of file");
+ lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
+ return (lex->tok->ttype = TOKEN_ERROR);
+ }
switch (ch) {
case '\\': break;
case 'v': ch = '\v'; break;
default:
lexwarn(lex, WARN_UNKNOWN_CONTROL_SEQUENCE, "unrecognized control sequence: \\%c", ch);
- /* so we just add the character plus backslash no matter what it actually is */
- if (!lex_tokench(lex, '\\'))
- return (lex->tok->ttype = TOKEN_FATAL);
+ /* so we just add the character plus backslash no matter what it actually is */
+ if (!lex_tokench(lex, '\\'))
+ return (lex->tok->ttype = TOKEN_FATAL);
}
/* add the character finally */
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- else if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- lexerror(lex, "unexpected end of file within string constant");
- lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
- return (lex->tok->ttype = TOKEN_ERROR);
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ else if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ lexerror(lex, "unexpected end of file within string constant");
+ lex_ungetch(lex, EOF); /* next token to be TOKEN_EOF */
+ return (lex->tok->ttype = TOKEN_ERROR);
}
static int GMQCC_WARN lex_finish_digit(lex_file *lex, int lastch)
{
- bool ishex = false;
-
- int ch = lastch;
-
- /* parse a number... */
- lex->tok->ttype = TOKEN_INTCONST;
-
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
-
- ch = lex_getch(lex);
- if (ch != '.' && !isdigit(ch))
- {
- if (lastch != '0' || ch != 'x')
- {
- /* end of the number or EOF */
- lex_ungetch(lex, ch);
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
-
- lex->tok->constval.i = lastch - '0';
- return lex->tok->ttype;
- }
-
- ishex = true;
- }
-
- /* EOF would have been caught above */
-
- if (ch != '.')
- {
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- ch = lex_getch(lex);
- while (isdigit(ch) || (ishex && isxdigit_only(ch)))
- {
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- ch = lex_getch(lex);
- }
- }
- /* NOT else, '.' can come from above as well */
- if (ch == '.' && !ishex)
- {
- /* Allow floating comma in non-hex mode */
- lex->tok->ttype = TOKEN_FLOATCONST;
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
-
- /* continue digits-only */
- ch = lex_getch(lex);
- while (isdigit(ch))
- {
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- ch = lex_getch(lex);
- }
- }
- /* put back the last character */
- /* but do not put back the trailing 'f' or a float */
- if (lex->tok->ttype == TOKEN_FLOATCONST && ch == 'f')
- ch = lex_getch(lex);
-
- /* generally we don't want words to follow numbers: */
- if (isident(ch)) {
- lexerror(lex, "unexpected trailing characters after number");
- return (lex->tok->ttype = TOKEN_ERROR);
- }
- lex_ungetch(lex, ch);
-
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- if (lex->tok->ttype == TOKEN_FLOATCONST)
- lex->tok->constval.f = strtod(lex->tok->value, NULL);
- else
- lex->tok->constval.i = strtol(lex->tok->value, NULL, 0);
- return lex->tok->ttype;
+ bool ishex = false;
+
+ int ch = lastch;
+
+ /* parse a number... */
+ lex->tok->ttype = TOKEN_INTCONST;
+
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+
+ ch = lex_getch(lex);
+ if (ch != '.' && !isdigit(ch))
+ {
+ if (lastch != '0' || ch != 'x')
+ {
+ /* end of the number or EOF */
+ lex_ungetch(lex, ch);
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+
+ lex->tok->constval.i = lastch - '0';
+ return lex->tok->ttype;
+ }
+
+ ishex = true;
+ }
+
+ /* EOF would have been caught above */
+
+ if (ch != '.')
+ {
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ ch = lex_getch(lex);
+ while (isdigit(ch) || (ishex && isxdigit_only(ch)))
+ {
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ ch = lex_getch(lex);
+ }
+ }
+ /* NOT else, '.' can come from above as well */
+ if (ch == '.' && !ishex)
+ {
+ /* Allow floating comma in non-hex mode */
+ lex->tok->ttype = TOKEN_FLOATCONST;
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+
+ /* continue digits-only */
+ ch = lex_getch(lex);
+ while (isdigit(ch))
+ {
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ ch = lex_getch(lex);
+ }
+ }
+ /* put back the last character */
+ /* but do not put back the trailing 'f' or a float */
+ if (lex->tok->ttype == TOKEN_FLOATCONST && ch == 'f')
+ ch = lex_getch(lex);
+
+ /* generally we don't want words to follow numbers: */
+ if (isident(ch)) {
+ lexerror(lex, "unexpected trailing characters after number");
+ return (lex->tok->ttype = TOKEN_ERROR);
+ }
+ lex_ungetch(lex, ch);
+
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ if (lex->tok->ttype == TOKEN_FLOATCONST)
+ lex->tok->constval.f = strtod(lex->tok->value, NULL);
+ else
+ lex->tok->constval.i = strtol(lex->tok->value, NULL, 0);
+ return lex->tok->ttype;
}
int lex_do(lex_file *lex)
{
- int ch, nextch;
-
- if (lex->tok)
- token_delete(lex->tok);
- lex->tok = token_new();
- if (!lex->tok)
- return TOKEN_FATAL;
-
- ch = lex_skipwhite(lex);
- lex->sline = lex->line;
- lex->tok->ctx.line = lex->sline;
- lex->tok->ctx.file = lex->name;
-
- if (ch == EOF)
- return (lex->tok->ttype = TOKEN_EOF);
-
- /* modelgen / spiritgen commands */
- if (ch == '$') {
- const char *v;
- size_t frame;
-
- ch = lex_getch(lex);
- if (!isident_start(ch)) {
- lexerror(lex, "hanging '$' modelgen/spritegen command line");
- return lex_do(lex);
- }
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- if (!lex_finish_ident(lex))
- return (lex->tok->ttype = TOKEN_ERROR);
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- /* skip the known commands */
- v = lex->tok->value;
+ int ch, nextch;
+
+ if (lex->tok)
+ token_delete(lex->tok);
+ lex->tok = token_new();
+ if (!lex->tok)
+ return TOKEN_FATAL;
+
+ ch = lex_skipwhite(lex);
+ lex->sline = lex->line;
+ lex->tok->ctx.line = lex->sline;
+ lex->tok->ctx.file = lex->name;
+
+ if (ch == EOF)
+ return (lex->tok->ttype = TOKEN_EOF);
+
+ /* modelgen / spiritgen commands */
+ if (ch == '$') {
+ const char *v;
+ size_t frame;
+
+ ch = lex_getch(lex);
+ if (!isident_start(ch)) {
+ lexerror(lex, "hanging '$' modelgen/spritegen command line");
+ return lex_do(lex);
+ }
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ if (!lex_finish_ident(lex))
+ return (lex->tok->ttype = TOKEN_ERROR);
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ /* skip the known commands */
+ v = lex->tok->value;
if (!strcmp(v, "frame") || !strcmp(v, "framesave"))
{
return lex_do(lex);
}
- token_delete(lex->tok);
- lex->tok = token_new();
+ token_delete(lex->tok);
+ lex->tok = token_new();
lex->tok->ttype = lex_finish_digit(lex, ch);
if (!lex_endtoken(lex))
return (lex->tok->ttype = TOKEN_FATAL);
{
int rc;
- token_delete(lex->tok);
- lex->tok = token_new();
+ token_delete(lex->tok);
+ lex->tok = token_new();
rc = lex_parse_frame(lex);
{
int rc;
- token_delete(lex->tok);
- lex->tok = token_new();
+ token_delete(lex->tok);
+ lex->tok = token_new();
rc = lex_parse_frame(lex);
for (frame = 0; frame < lex->frames_count; ++frame)
mem_d(lex->frames[frame].name);
MEM_VECTOR_CLEAR(lex, frames);
- /* skip line (fteqcc does it too) */
- ch = lex_getch(lex);
- while (ch != EOF && ch != '\n')
- ch = lex_getch(lex);
+ /* skip line (fteqcc does it too) */
+ ch = lex_getch(lex);
+ while (ch != EOF && ch != '\n')
+ ch = lex_getch(lex);
return lex_do(lex);
}
- if (!strcmp(v, "cd") ||
- !strcmp(v, "origin") ||
- !strcmp(v, "base") ||
- !strcmp(v, "flags") ||
- !strcmp(v, "scale") ||
- !strcmp(v, "skin"))
- {
- /* skip line */
- ch = lex_getch(lex);
- while (ch != EOF && ch != '\n')
- ch = lex_getch(lex);
- return lex_do(lex);
- }
+ if (!strcmp(v, "cd") ||
+ !strcmp(v, "origin") ||
+ !strcmp(v, "base") ||
+ !strcmp(v, "flags") ||
+ !strcmp(v, "scale") ||
+ !strcmp(v, "skin"))
+ {
+ /* skip line */
+ ch = lex_getch(lex);
+ while (ch != EOF && ch != '\n')
+ ch = lex_getch(lex);
+ return lex_do(lex);
+ }
for (frame = 0; frame < lex->frames_count; ++frame) {
if (!strcmp(v, lex->frames[frame].name)) {
lexerror(lex, "invalid frame macro");
return lex_do(lex);
- }
-
- /* single-character tokens */
- switch (ch)
- {
- case '(':
- if (!lex_tokench(lex, ch) ||
- !lex_endtoken(lex))
- {
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- if (lex->flags.noops)
- return (lex->tok->ttype = ch);
- else
- return (lex->tok->ttype = TOKEN_OPERATOR);
- case ')':
- case ';':
- case '{':
- case '}':
- case '[':
- case ']':
-
- case '#':
- if (!lex_tokench(lex, ch) ||
- !lex_endtoken(lex))
- {
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- return (lex->tok->ttype = ch);
- default:
- break;
- }
-
- if (lex->flags.noops)
- {
- /* Detect characters early which are normally
- * operators OR PART of an operator.
- */
- switch (ch)
- {
- case '+':
- case '-':
- case '*':
- case '/':
- case '<':
- case '>':
- case '=':
- case '&':
- case '|':
- case '^':
- case '~':
- case ',':
- case '.':
- case '!':
- if (!lex_tokench(lex, ch) ||
- !lex_endtoken(lex))
- {
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- return (lex->tok->ttype = ch);
- default:
- break;
- }
- }
-
- if (ch == ',' || ch == '.') {
- if (!lex_tokench(lex, ch) ||
- !lex_endtoken(lex))
- {
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- return (lex->tok->ttype = TOKEN_OPERATOR);
- }
-
- if (ch == '+' || ch == '-' || /* ++, --, +=, -= and -> as well! */
- ch == '>' || ch == '<' || /* <<, >>, <=, >= */
- ch == '=' || ch == '!' || /* ==, != */
- ch == '&' || ch == '|') /* &&, ||, &=, |= */
- {
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
-
- nextch = lex_getch(lex);
- if (nextch == ch || nextch == '=') {
- if (!lex_tokench(lex, nextch))
- return (lex->tok->ttype = TOKEN_FATAL);
- } else if (ch == '-' && nextch == '>') {
- if (!lex_tokench(lex, nextch))
- return (lex->tok->ttype = TOKEN_FATAL);
- } else
- lex_ungetch(lex, nextch);
-
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- return (lex->tok->ttype = TOKEN_OPERATOR);
- }
+ }
+
+ /* single-character tokens */
+ switch (ch)
+ {
+ case '(':
+ if (!lex_tokench(lex, ch) ||
+ !lex_endtoken(lex))
+ {
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ if (lex->flags.noops)
+ return (lex->tok->ttype = ch);
+ else
+ return (lex->tok->ttype = TOKEN_OPERATOR);
+ case ')':
+ case ';':
+ case '{':
+ case '}':
+ case '[':
+ case ']':
+
+ case '#':
+ if (!lex_tokench(lex, ch) ||
+ !lex_endtoken(lex))
+ {
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ return (lex->tok->ttype = ch);
+ default:
+ break;
+ }
+
+ if (lex->flags.noops)
+ {
+ /* Detect characters early which are normally
+ * operators OR PART of an operator.
+ */
+ switch (ch)
+ {
+ case '+':
+ case '-':
+ case '*':
+ case '/':
+ case '<':
+ case '>':
+ case '=':
+ case '&':
+ case '|':
+ case '^':
+ case '~':
+ case ',':
+ case '.':
+ case '!':
+ if (!lex_tokench(lex, ch) ||
+ !lex_endtoken(lex))
+ {
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ return (lex->tok->ttype = ch);
+ default:
+ break;
+ }
+ }
+
+ if (ch == ',' || ch == '.') {
+ if (!lex_tokench(lex, ch) ||
+ !lex_endtoken(lex))
+ {
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ return (lex->tok->ttype = TOKEN_OPERATOR);
+ }
+
+ if (ch == '+' || ch == '-' || /* ++, --, +=, -= and -> as well! */
+ ch == '>' || ch == '<' || /* <<, >>, <=, >= */
+ ch == '=' || ch == '!' || /* ==, != */
+ ch == '&' || ch == '|') /* &&, ||, &=, |= */
+ {
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+
+ nextch = lex_getch(lex);
+ if (nextch == ch || nextch == '=') {
+ if (!lex_tokench(lex, nextch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ } else if (ch == '-' && nextch == '>') {
+ if (!lex_tokench(lex, nextch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ } else
+ lex_ungetch(lex, nextch);
+
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ return (lex->tok->ttype = TOKEN_OPERATOR);
+ }
/*
- if (ch == '^' || ch == '~' || ch == '!')
- {
- if (!lex_tokench(lex, ch) ||
- !lex_endtoken(lex))
- {
- return (lex->tok->ttype = TOKEN_FATAL);
- }
- return (lex->tok->ttype = TOKEN_OPERATOR);
- }
- */
-
- if (ch == '*' || ch == '/') /* *=, /= */
- {
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
-
- nextch = lex_getch(lex);
- if (nextch == '=') {
- if (!lex_tokench(lex, nextch))
- return (lex->tok->ttype = TOKEN_FATAL);
- } else
- lex_ungetch(lex, nextch);
-
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- return (lex->tok->ttype = TOKEN_OPERATOR);
- }
-
- if (isident_start(ch))
- {
- const char *v;
-
- if (!lex_tokench(lex, ch))
- return (lex->tok->ttype = TOKEN_FATAL);
- if (!lex_finish_ident(lex)) {
- /* error? */
- return (lex->tok->ttype = TOKEN_ERROR);
- }
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- lex->tok->ttype = TOKEN_IDENT;
-
- v = lex->tok->value;
- if (!strcmp(v, "void")) {
- lex->tok->ttype = TOKEN_TYPENAME;
- lex->tok->constval.t = TYPE_VOID;
- } else if (!strcmp(v, "int")) {
- lex->tok->ttype = TOKEN_TYPENAME;
- lex->tok->constval.t = TYPE_INTEGER;
- } else if (!strcmp(v, "float")) {
- lex->tok->ttype = TOKEN_TYPENAME;
- lex->tok->constval.t = TYPE_FLOAT;
- } else if (!strcmp(v, "string")) {
- lex->tok->ttype = TOKEN_TYPENAME;
- lex->tok->constval.t = TYPE_STRING;
- } else if (!strcmp(v, "entity")) {
- lex->tok->ttype = TOKEN_TYPENAME;
- lex->tok->constval.t = TYPE_ENTITY;
- } else if (!strcmp(v, "vector")) {
- lex->tok->ttype = TOKEN_TYPENAME;
- lex->tok->constval.t = TYPE_VECTOR;
- } else if (!strcmp(v, "for") ||
- !strcmp(v, "while") ||
- !strcmp(v, "do") ||
- !strcmp(v, "if") ||
- !strcmp(v, "else") ||
- !strcmp(v, "local") ||
- !strcmp(v, "return") ||
- !strcmp(v, "const"))
- lex->tok->ttype = TOKEN_KEYWORD;
-
- return lex->tok->ttype;
- }
-
- if (ch == '"')
- {
- lex->tok->ttype = lex_finish_string(lex, '"');
- while (lex->tok->ttype == TOKEN_STRINGCONST)
- {
- /* Allow c style "string" "continuation" */
- ch = lex_skipwhite(lex);
- if (ch != '"') {
- lex_ungetch(lex, ch);
- break;
- }
-
- lex->tok->ttype = lex_finish_string(lex, '"');
- }
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- return lex->tok->ttype;
- }
-
- if (ch == '\'')
- {
- /* we parse character constants like string,
- * but return TOKEN_CHARCONST, or a vector type if it fits...
- * Likewise actual unescaping has to be done by the parser.
- * The difference is we don't allow 'char' 'continuation'.
- */
- lex->tok->ttype = lex_finish_string(lex, '\'');
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
-
- /* It's a vector if we can successfully scan 3 floats */
+ if (ch == '^' || ch == '~' || ch == '!')
+ {
+ if (!lex_tokench(lex, ch) ||
+ !lex_endtoken(lex))
+ {
+ return (lex->tok->ttype = TOKEN_FATAL);
+ }
+ return (lex->tok->ttype = TOKEN_OPERATOR);
+ }
+ */
+
+ if (ch == '*' || ch == '/') /* *=, /= */
+ {
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+
+ nextch = lex_getch(lex);
+ if (nextch == '=') {
+ if (!lex_tokench(lex, nextch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ } else
+ lex_ungetch(lex, nextch);
+
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ return (lex->tok->ttype = TOKEN_OPERATOR);
+ }
+
+ if (isident_start(ch))
+ {
+ const char *v;
+
+ if (!lex_tokench(lex, ch))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ if (!lex_finish_ident(lex)) {
+ /* error? */
+ return (lex->tok->ttype = TOKEN_ERROR);
+ }
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ lex->tok->ttype = TOKEN_IDENT;
+
+ v = lex->tok->value;
+ if (!strcmp(v, "void")) {
+ lex->tok->ttype = TOKEN_TYPENAME;
+ lex->tok->constval.t = TYPE_VOID;
+ } else if (!strcmp(v, "int")) {
+ lex->tok->ttype = TOKEN_TYPENAME;
+ lex->tok->constval.t = TYPE_INTEGER;
+ } else if (!strcmp(v, "float")) {
+ lex->tok->ttype = TOKEN_TYPENAME;
+ lex->tok->constval.t = TYPE_FLOAT;
+ } else if (!strcmp(v, "string")) {
+ lex->tok->ttype = TOKEN_TYPENAME;
+ lex->tok->constval.t = TYPE_STRING;
+ } else if (!strcmp(v, "entity")) {
+ lex->tok->ttype = TOKEN_TYPENAME;
+ lex->tok->constval.t = TYPE_ENTITY;
+ } else if (!strcmp(v, "vector")) {
+ lex->tok->ttype = TOKEN_TYPENAME;
+ lex->tok->constval.t = TYPE_VECTOR;
+ } else if (!strcmp(v, "for") ||
+ !strcmp(v, "while") ||
+ !strcmp(v, "do") ||
+ !strcmp(v, "if") ||
+ !strcmp(v, "else") ||
+ !strcmp(v, "local") ||
+ !strcmp(v, "return") ||
+ !strcmp(v, "const"))
+ lex->tok->ttype = TOKEN_KEYWORD;
+
+ return lex->tok->ttype;
+ }
+
+ if (ch == '"')
+ {
+ lex->tok->ttype = lex_finish_string(lex, '"');
+ while (lex->tok->ttype == TOKEN_STRINGCONST)
+ {
+ /* Allow c style "string" "continuation" */
+ ch = lex_skipwhite(lex);
+ if (ch != '"') {
+ lex_ungetch(lex, ch);
+ break;
+ }
+
+ lex->tok->ttype = lex_finish_string(lex, '"');
+ }
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ return lex->tok->ttype;
+ }
+
+ if (ch == '\'')
+ {
+ /* we parse character constants like string,
+ * but return TOKEN_CHARCONST, or a vector type if it fits...
+ * Likewise actual unescaping has to be done by the parser.
+ * The difference is we don't allow 'char' 'continuation'.
+ */
+ lex->tok->ttype = lex_finish_string(lex, '\'');
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+
+ /* It's a vector if we can successfully scan 3 floats */
#ifdef WIN32
- if (sscanf_s(lex->tok->value, " %f %f %f ",
- &lex->tok->constval.v.x, &lex->tok->constval.v.y, &lex->tok->constval.v.z) == 3)
+ if (sscanf_s(lex->tok->value, " %f %f %f ",
+ &lex->tok->constval.v.x, &lex->tok->constval.v.y, &lex->tok->constval.v.z) == 3)
#else
- if (sscanf(lex->tok->value, " %f %f %f ",
- &lex->tok->constval.v.x, &lex->tok->constval.v.y, &lex->tok->constval.v.z) == 3)
+ if (sscanf(lex->tok->value, " %f %f %f ",
+ &lex->tok->constval.v.x, &lex->tok->constval.v.y, &lex->tok->constval.v.z) == 3)
#endif
- {
- lex->tok->ttype = TOKEN_VECTORCONST;
- }
-
- return lex->tok->ttype;
- }
-
- if (isdigit(ch))
- {
- lex->tok->ttype = lex_finish_digit(lex, ch);
- if (!lex_endtoken(lex))
- return (lex->tok->ttype = TOKEN_FATAL);
- return lex->tok->ttype;
- }
-
- lexerror(lex, "unknown token");
- return (lex->tok->ttype = TOKEN_ERROR);
+ {
+ lex->tok->ttype = TOKEN_VECTORCONST;
+ }
+
+ return lex->tok->ttype;
+ }
+
+ if (isdigit(ch))
+ {
+ lex->tok->ttype = lex_finish_digit(lex, ch);
+ if (!lex_endtoken(lex))
+ return (lex->tok->ttype = TOKEN_FATAL);
+ return lex->tok->ttype;
+ }
+
+ lexerror(lex, "unknown token");
+ return (lex->tok->ttype = TOKEN_ERROR);
}
projects / xonotic / gmqcc.git / commitdiff