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Implement infrastructure around new lexer

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The lexer itself is very much incomplete, but this is intended to be a
safe point to revert to should further implementation go south.
This commit is contained in:
ISSOtm
2020-07-23 12:12:58 +02:00
parent 3a44cc7722
commit 6dc4ce6599
15 changed files with 497 additions and 1586 deletions
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13
include/asm/fstack.h
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@@ -24,7 +24,7 @@
struct MacroArgs;
struct sContext {
YY_BUFFER_STATE FlexHandle;
struct LexerState *lexerState;
struct Symbol const *pMacro;
struct sContext *next;
char tzFileName[_MAX_PATH + 1];
@@ -32,7 +32,6 @@ struct sContext {
uint32_t uniqueID;
int32_t nLine;
uint32_t nStatus;
FILE *pFile;
char *pREPTBlock;
uint32_t nREPTBlockCount;
uint32_t nREPTBlockSize;
@@ -46,11 +45,17 @@ void fstk_RunInclude(char *tzFileName);
void fstk_Init(char *s);
void fstk_Dump(void);
void fstk_DumpToStr(char *buf, size_t len);
void fstk_DumpStringExpansions(void);
void fstk_AddIncludePath(char *s);
void fstk_RunMacro(char *s, struct MacroArgs *args);
void fstk_RunRept(uint32_t count, int32_t nReptLineNo);
FILE *fstk_FindFile(char const *fname, char **incPathUsed);
/**
* @param path The user-provided file name
* @param fullPath The address of a pointer, which will be made to point at the full path
* The pointer's value must be a valid argument to `realloc`, including NULL
* @param size Current size of the buffer, or 0 if the pointer is NULL
* @return True if the file was found, false if no path worked
*/
bool fstk_FindFile(char const *path, char **fullPath, size_t *size);
int32_t fstk_GetLine(void);
#endif /* RGBDS_ASM_FSTACK_H */