diff options
Diffstat (limited to 'src/parse/parse.c')
| -rw-r--r-- | src/parse/parse.c | 72 |
1 files changed, 2 insertions, 70 deletions
diff --git a/src/parse/parse.c b/src/parse/parse.c index 48c92ef9..53365ee7 100644 --- a/src/parse/parse.c +++ b/src/parse/parse.c @@ -1,5 +1,5 @@ // Recursive descent parser for parsing code -#include <ctype.h> + #include <gc.h> #include <stdarg.h> #include <stdbool.h> @@ -16,10 +16,10 @@ #include "context.h" #include "errors.h" #include "files.h" +#include "numbers.h" #include "parse.h" #include "utils.h" -static const double RADIANS_PER_DEGREE = 0.0174532925199432957692369076848861271344287188854172545609719144; static const char closing[128] = {['('] = ')', ['['] = ']', ['<'] = '>', ['{'] = '}'}; int op_tightness[] = { @@ -49,10 +49,6 @@ int op_tightness[] = { [Xor] = 1, }; -/////////////////////////////////////////////////////////////////////////////////////////////////////////// -//////////////////////////////////// AST-based parsers ///////////////////////////////////////////// -/////////////////////////////////////////////////////////////////////////////////////////////////////////// - ast_t *parse_parens(parse_ctx_t *ctx, const char *pos) { const char *start = pos; spaces(&pos); @@ -75,39 +71,6 @@ ast_t *parse_parens(parse_ctx_t *ctx, const char *pos) { return new (ast_t, .file = (ctx)->file, .start = start, .end = pos, .tag = expr->tag, .__data = expr->__data); } -ast_t *parse_int(parse_ctx_t *ctx, const char *pos) { - const char *start = pos; - (void)match(&pos, "-"); - if (!isdigit(*pos)) return NULL; - if (match(&pos, "0x")) { // Hex - pos += strspn(pos, "0123456789abcdefABCDEF_"); - } else if (match(&pos, "0b")) { // Binary - pos += strspn(pos, "01_"); - } else if (match(&pos, "0o")) { // Octal - pos += strspn(pos, "01234567_"); - } else { // Decimal - pos += strspn(pos, "0123456789_"); - } - char *str = GC_MALLOC_ATOMIC((size_t)(pos - start) + 1); - memset(str, 0, (size_t)(pos - start) + 1); - for (char *src = (char *)start, *dest = str; src < pos; ++src) { - if (*src != '_') *(dest++) = *src; - } - - if (match(&pos, "e") || match(&pos, "f")) // floating point literal - return NULL; - - if (match(&pos, "%")) { - double n = strtod(str, NULL) / 100.; - return NewAST(ctx->file, start, pos, Num, .n = n); - } else if (match(&pos, "deg")) { - double n = strtod(str, NULL) * RADIANS_PER_DEGREE; - return NewAST(ctx->file, start, pos, Num, .n = n); - } - - return NewAST(ctx->file, start, pos, Int, .str = str); -} - type_ast_t *parse_table_type(parse_ctx_t *ctx, const char *pos) { const char *start = pos; if (!match(&pos, "{")) return NULL; @@ -230,37 +193,6 @@ type_ast_t *parse_type(parse_ctx_t *ctx, const char *pos) { return type; } -ast_t *parse_num(parse_ctx_t *ctx, const char *pos) { - const char *start = pos; - bool negative = match(&pos, "-"); - if (!isdigit(*pos) && *pos != '.') return NULL; - else if (*pos == '.' && !isdigit(pos[1])) return NULL; - - size_t len = strspn(pos, "0123456789_"); - if (strncmp(pos + len, "..", 2) == 0) return NULL; - else if (pos[len] == '.') len += 1 + strspn(pos + len + 1, "0123456789"); - else if (pos[len] != 'e' && pos[len] != 'f' && pos[len] != '%') return NULL; - if (pos[len] == 'e') { - len += 1; - if (pos[len] == '-') len += 1; - len += strspn(pos + len, "0123456789_"); - } - char *buf = GC_MALLOC_ATOMIC(len + 1); - memset(buf, 0, len + 1); - for (char *src = (char *)pos, *dest = buf; src < pos + len; ++src) { - if (*src != '_') *(dest++) = *src; - } - double d = strtod(buf, NULL); - pos += len; - - if (negative) d *= -1; - - if (match(&pos, "%")) d /= 100.; - else if (match(&pos, "deg")) d *= RADIANS_PER_DEGREE; - - return NewAST(ctx->file, start, pos, Num, .n = d); -} - ast_t *parse_list(parse_ctx_t *ctx, const char *pos) { const char *start = pos; if (!match(&pos, "[")) return NULL; |
