roxml_shell.c

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#include "roxml.h"
#include <sys/types.h>
#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

void print_help(void)
{
        fprintf(stderr, "LGPL command line XML parser\n<tristan.lelong@libroxml.net>\n");
}

void print_usage(const char *progname)
{
        fprintf(stderr, "\nusage: %s [-q|-h] <filename> [/]<node1>/<node2>/<node3>/.../<nodeN>\n", progname);
        fprintf(stderr, "-q|--quiet: activate quiet mode\n");
        fprintf(stderr, "-c|--content: show content of node instead of name\n");
        fprintf(stderr, "-h|--help: display this message\n");
}

int main(int argc, char **argv)
{
        int optind;
        int quiet = 0;
        int content = 0;
        int j, max;
        node_t *root;
        node_t **ans;

        for (optind = 1; optind < argc; optind++) {
                int option = 0;
                if (argv[optind][0] == '-') {
                        if (strcmp(argv[optind], "--help") == 0) {
                                option = 'h';
                        } else if (strcmp(argv[optind], "--content") == 0) {
                                option = 'c';
                        } else if (strcmp(argv[optind], "--quiet") == 0) {
                                option = 'q';
                        } else if (strcmp(argv[optind], "-h") == 0) {
                                option = 'h';
                        } else if (strcmp(argv[optind], "-c") == 0) {
                                option = 'c';
                        } else if (strcmp(argv[optind], "-q") == 0) {
                                option = 'q';
                        }
                } else {
                        break;
                }
                switch (option) {
                case 'q':
                        quiet = 1;
                        break;
                case 'c':
                        content = 1;
                        break;
                case 'h':
                        print_help();
                        print_usage(argv[0]);
                        return EXIT_FAILURE;
                        break;
                default:
                        print_usage(argv[0]);
                        return EXIT_FAILURE;
                        break;
                }
        }

        root = roxml_load_doc(argv[optind]);
        if (root == NULL) {
                if (!quiet)
                        perror("error parsing xml file");
                goto error;
        }

        if (argc < optind + 2)
                ans = roxml_xpath(root, "/", &max);
        else
                ans = roxml_xpath(root, argv[optind + 1], &max);

        for (j = 0; j < max; j++) {
                char *c = NULL;

                // Dump the XML subtree.
                if (content) {
                        roxml_commit_fd(ans[j], 1, 1);
                        fprintf(stdout, "\n");
                        fflush(stdout);
                        continue;
                }

                // Or display:
                // - the node content for leaf nodes.
                // - list of children otherwise. 
                c = roxml_get_content(ans[j], NULL, 0, NULL);
                if (c && *c) {
                        if (!quiet)
                                fprintf(stdout, "ans[%d]: ", j);
                        fprintf(stdout, "%s\n", c);
                } else if (c) {
                        char *s = NULL;
                        int nb_chld = roxml_get_chld_nb(ans[j]);
                        int i = 0;

                        for (i = 0; i < nb_chld; i++) {
                                node_t *child = roxml_get_chld(ans[j], NULL, i);
                                node_t *ns = roxml_get_ns(child);
                                c = roxml_get_name(child, NULL, 0);
                                if (!quiet)
                                        fprintf(stdout, "ans[%d]: ", j);
                                if (ns) {
                                        s = roxml_get_name(ns, NULL, 0);
                                        if (strlen(s))
                                                fprintf(stdout, "%s:", s);
                                }
                                fprintf(stdout, "%s\n", c);
                        }
                }
        }
        roxml_release(RELEASE_ALL);

        roxml_close(root);

error:
        return 0;
}