mirror of
https://github.com/stedolan/jq.git
synced 2024-05-11 05:55:39 +00:00
64 lines
1.6 KiB
C
64 lines
1.6 KiB
C
#include <stdio.h>
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#include <string.h>
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#include "compile.h"
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#include "builtin.h"
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#include "jv.h"
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#include "jv_parse.h"
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#include "locfile.h"
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#include "parser.h"
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#include "execute.h"
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static const char* progname;
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static void usage() {
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fprintf(stderr, "\njq - commandline JSON processor\n");
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fprintf(stderr, "Usage: %s <jq filter>\n\n", progname);
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fprintf(stderr, "For a description of how to write jq filters and\n");
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fprintf(stderr, "why you might want to, see the jq documentation at\n");
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fprintf(stderr, "http://stedolan.github.com/jq\n\n");
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exit(1);
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}
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int main(int argc, char* argv[]) {
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if (argc) progname = argv[0];
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if (argc != 2 || !strcmp(argv[1], "--help") || !strcmp(argv[1], "--version")) usage();
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struct bytecode* bc = jq_compile(argv[1]);
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if (!bc) return 1;
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#if JQ_DEBUG
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dump_disassembly(0, bc);
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printf("\n");
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#endif
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struct jv_parser parser;
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jv_parser_init(&parser);
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while (!feof(stdin)) {
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char buf[4096];
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if (!fgets(buf, sizeof(buf), stdin)) buf[0] = 0;
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jv_parser_set_buf(&parser, buf, strlen(buf), !feof(stdin));
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jv value;
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while (jv_is_valid((value = jv_parser_next(&parser)))) {
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jq_init(bc, value);
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jv result;
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while (jv_is_valid(result = jq_next())) {
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jv_dump(result, JV_PRINT_PRETTY);
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printf("\n");
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}
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jv_free(result);
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jq_teardown();
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}
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if (jv_invalid_has_msg(jv_copy(value))) {
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jv msg = jv_invalid_get_msg(value);
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fprintf(stderr, "parse error: %s\n", jv_string_value(msg));
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jv_free(msg);
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break;
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} else {
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jv_free(value);
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}
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}
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jv_parser_free(&parser);
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bytecode_free(bc);
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return 0;
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}
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