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71 lines
1.4 KiB
71 lines
1.4 KiB
#include <stdarg.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <stdio.h>
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#include "unicode.h"
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#include "util.h"
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void parser_fatal(struct parser *parser, const char *err) {
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fprintf(stderr, "Error at %d:%d: %s\n",
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parser->line, parser->col, err);
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fclose(parser->input);
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fclose(parser->output);
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exit(1);
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}
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uint32_t parser_getch(struct parser *parser) {
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if (parser->qhead) {
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return parser->queue[--parser->qhead];
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}
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if (parser->str) {
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uint32_t ch = utf8_decode(&parser->str);
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if (!ch || ch == UTF8_INVALID) {
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parser->str = NULL;
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return UTF8_INVALID;
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}
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return ch;
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}
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uint32_t ch = utf8_fgetch(parser->input);
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if (ch == '\n') {
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parser->col = 0;
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++parser->line;
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} else {
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++parser->col;
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}
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return ch;
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}
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void parser_pushch(struct parser *parser, uint32_t ch) {
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if (ch != UTF8_INVALID) {
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parser->queue[parser->qhead++] = ch;
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}
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}
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void parser_pushstr(struct parser *parser, const char *str) {
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parser->str = str;
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}
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int roff_macro(struct parser *p, char *cmd, ...) {
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FILE *f = p->output;
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int l = fprintf(f, ".%s", cmd);
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va_list ap;
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va_start(ap, cmd);
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const char *arg;
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while ((arg = va_arg(ap, const char *))) {
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fputc(' ', f);
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fputc('"', f);
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while (*arg) {
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uint32_t ch = utf8_decode(&arg);
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if (ch == '"') {
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fputc('\\', f);
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++l;
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}
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l += utf8_fputch(f, ch);
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}
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fputc('"', f);
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l += 3;
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}
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va_end(ap);
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fputc('\n', f);
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return l + 1;
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}
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