diff options
Diffstat (limited to 'contrib/libyaml/tests/example-reformatter.c')
| -rw-r--r-- | contrib/libyaml/tests/example-reformatter.c | 202 |
1 files changed, 202 insertions, 0 deletions
diff --git a/contrib/libyaml/tests/example-reformatter.c b/contrib/libyaml/tests/example-reformatter.c new file mode 100644 index 0000000..946d556 --- /dev/null +++ b/contrib/libyaml/tests/example-reformatter.c @@ -0,0 +1,202 @@ + +#include <yaml.h> + +#include <stdlib.h> +#include <stdio.h> + +int +main(int argc, char *argv[]) +{ + int help = 0; + int canonical = 0; + int unicode = 0; + int k; + int done = 0; + + yaml_parser_t parser; + yaml_emitter_t emitter; + yaml_event_t event; + + /* Clear the objects. */ + + memset(&parser, 0, sizeof(parser)); + memset(&emitter, 0, sizeof(emitter)); + memset(&event, 0, sizeof(event)); + + /* Analyze command line options. */ + + for (k = 1; k < argc; k ++) + { + if (strcmp(argv[k], "-h") == 0 + || strcmp(argv[k], "--help") == 0) { + help = 1; + } + + else if (strcmp(argv[k], "-c") == 0 + || strcmp(argv[k], "--canonical") == 0) { + canonical = 1; + } + + else if (strcmp(argv[k], "-u") == 0 + || strcmp(argv[k], "--unicode") == 0) { + unicode = 1; + } + + else { + fprintf(stderr, "Unrecognized option: %s\n" + "Try `%s --help` for more information.\n", + argv[k], argv[0]); + return 1; + } + } + + /* Display the help string. */ + + if (help) + { + printf("%s [--canonical] [--unicode] <input >output\n" + "or\n%s -h | --help\nReformat a YAML stream\n\nOptions:\n" + "-h, --help\t\tdisplay this help and exit\n" + "-c, --canonical\t\toutput in the canonical YAML format\n" + "-u, --unicode\t\toutput unescaped non-ASCII characters\n", + argv[0], argv[0]); + return 0; + } + + /* Initialize the parser and emitter objects. */ + + if (!yaml_parser_initialize(&parser)) + goto parser_error; + + if (!yaml_emitter_initialize(&emitter)) + goto emitter_error; + + /* Set the parser parameters. */ + + yaml_parser_set_input_file(&parser, stdin); + + /* Set the emitter parameters. */ + + yaml_emitter_set_output_file(&emitter, stdout); + + yaml_emitter_set_canonical(&emitter, canonical); + yaml_emitter_set_unicode(&emitter, unicode); + + /* The main loop. */ + + while (!done) + { + /* Get the next event. */ + + if (!yaml_parser_parse(&parser, &event)) + goto parser_error; + + /* Check if this is the stream end. */ + + if (event.type == YAML_STREAM_END_EVENT) { + done = 1; + } + + /* Emit the event. */ + + if (!yaml_emitter_emit(&emitter, &event)) + goto emitter_error; + } + + yaml_parser_delete(&parser); + yaml_emitter_delete(&emitter); + + return 0; + +parser_error: + + /* Display a parser error message. */ + + switch (parser.error) + { + case YAML_MEMORY_ERROR: + fprintf(stderr, "Memory error: Not enough memory for parsing\n"); + break; + + case YAML_READER_ERROR: + if (parser.problem_value != -1) { + fprintf(stderr, "Reader error: %s: #%X at %d\n", parser.problem, + parser.problem_value, parser.problem_offset); + } + else { + fprintf(stderr, "Reader error: %s at %d\n", parser.problem, + parser.problem_offset); + } + break; + + case YAML_SCANNER_ERROR: + if (parser.context) { + fprintf(stderr, "Scanner error: %s at line %d, column %d\n" + "%s at line %d, column %d\n", parser.context, + parser.context_mark.line+1, parser.context_mark.column+1, + parser.problem, parser.problem_mark.line+1, + parser.problem_mark.column+1); + } + else { + fprintf(stderr, "Scanner error: %s at line %d, column %d\n", + parser.problem, parser.problem_mark.line+1, + parser.problem_mark.column+1); + } + break; + + case YAML_PARSER_ERROR: + if (parser.context) { + fprintf(stderr, "Parser error: %s at line %d, column %d\n" + "%s at line %d, column %d\n", parser.context, + parser.context_mark.line+1, parser.context_mark.column+1, + parser.problem, parser.problem_mark.line+1, + parser.problem_mark.column+1); + } + else { + fprintf(stderr, "Parser error: %s at line %d, column %d\n", + parser.problem, parser.problem_mark.line+1, + parser.problem_mark.column+1); + } + break; + + default: + /* Couldn't happen. */ + fprintf(stderr, "Internal error\n"); + break; + } + + yaml_parser_delete(&parser); + yaml_emitter_delete(&emitter); + + return 1; + +emitter_error: + + /* Display an emitter error message. */ + + switch (emitter.error) + { + case YAML_MEMORY_ERROR: + fprintf(stderr, "Memory error: Not enough memory for emitting\n"); + break; + + case YAML_WRITER_ERROR: + fprintf(stderr, "Writer error: %s\n", emitter.problem); + break; + + case YAML_EMITTER_ERROR: + fprintf(stderr, "Emitter error: %s\n", emitter.problem); + break; + + default: + /* Couldn't happen. */ + fprintf(stderr, "Internal error\n"); + break; + } + + yaml_parser_delete(&parser); + yaml_emitter_delete(&emitter); + + return 1; +} + |
