Initial import of the CDE 2.1.30 sources from the Open Group.
This commit is contained in:
Peter Howkins
444
cde/programs/dtdocbook/instant/browse.c
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444
cde/programs/dtdocbook/instant/browse.c
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/*
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* Copyright 1993 Open Software Foundation, Inc., Cambridge, Massachusetts.
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* All rights reserved.
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*/
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/*
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* Copyright (c) 1994
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* Open Software Foundation, Inc.
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*
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* Permission is hereby granted to use, copy, modify and freely distribute
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* the software in this file and its documentation for any purpose without
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* fee, provided that the above copyright notice appears in all copies and
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* that both the copyright notice and this permission notice appear in
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* supporting documentation. Further, provided that the name of Open
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* Software Foundation, Inc. ("OSF") not be used in advertising or
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* publicity pertaining to distribution of the software without prior
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* written permission from OSF. OSF makes no representations about the
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* suitability of this software for any purpose. It is provided "as is"
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* without express or implied warranty.
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*/
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/* ________________________________________________________________________
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*
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* Module for interactive browsing.
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*
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* Entry points for this module:
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* Browse() interactive browser
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* ________________________________________________________________________
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*/
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#ifndef lint
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static char *RCSid =
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"$XConsortium: browse.c /main/3 1996/06/19 17:13:03 drk $";
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <ctype.h>
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#include <string.h>
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#include "general.h"
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static void PrElemPlusID(Element_t *);
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static void ls_node(Element_t *, int, char **);
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static void do_query(Element_t *, char *, char *);
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static void do_find(Element_t *, char **);
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/* ______________________________________________________________________ */
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static char *br_help_msg[] = {
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" ls List info about current element in tree",
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" (context, children, attributes, etc.)",
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" cd N ... Change to Nth elememt child, where N is shown by 'ls'.",
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" N may also be '/' (top) or '..' (up).",
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" cd id I Change to elememt whose ID is I",
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" data N Show data of Nth data node",
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" where Show current position in the tree",
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" id I Show path to element with id I",
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" (using '?' for I will lists all IDs and their paths)",
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" find S Find elements matching spec S. Recognized syntaxes:",
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" find attr <name> <value>",
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" find cont <string>",
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" find parent <gi-name>",
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" find child <gi-name>",
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" find gi <gi-name>",
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" q rel gi Query: report if elem 'gi' has relation to current elem",
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" ('rel' is one of 'child parent ancestor descendant",
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" sibling sibling+ sibling+1 sibling- sibling-1 cousin')",
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"",
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" tran file [outfile]",
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" With trans spec in 'file' translate into 'outfile' (stdout)",
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" sdata file Read SDATA map file (for translations).",
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" cmap file Read character map file (for translations).",
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" stat Print statistics (how often elements occur, etc.)",
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" sum Print elem usage summary (# of children, depth, etc.)",
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" tree Print document hierarchy as a tree",
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" cont Print context of each element",
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NULL
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};
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/* ______________________________________________________________________ */
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void
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Browse()
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{
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char buf[256], *cmd, **av, **sv, *cmapfile, *sdatafile;
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char *Prompt;
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Element_t *ce; /* current element */
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Element_t *e;
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int i, n, ac;
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if (slave) Prompt = "=>\n";
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else Prompt = "=> ";
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ce = DocTree;
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while (fputs(Prompt, stdout)) {
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if (!fgets(buf, 256, stdin)) break;
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stripNL(buf);
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if (buf[0] == EOS) {
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fputs(Prompt, stdout);
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continue;
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}
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ac = 20;
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av = Split(buf, &ac, S_ALVEC);
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if (ac > 0) cmd = av[0];
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if (!cmd || !(*cmd)) continue;
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if (!strcmp(cmd, "ls")) ls_node(ce, ac, av);
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else if (!strcmp(cmd, "cd")) {
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if (av[1]) {
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if (ac == 3 && !strcmp(av[1], "id")) {
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if ((e = FindElemByID(av[2]))) ce = e;
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else printf("Element with ID '%s' not found.\n", av[2]);
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continue;
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}
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for (i=1; i<ac; i++) {
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if (!strcmp(av[i], "..")) {
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if (ce->parent) ce = ce->parent;
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continue;
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}
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if (!strcmp(av[i], "/")) {
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if (ce->parent) ce = DocTree;
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continue;
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}
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if (!isdigit(*av[i])) {
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printf("Expecting digit, '..', or '/', got '%s'.\n",
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av[i]);
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break;
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}
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n = atoi(av[i]);
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if (n < ce->necont) ce = ce->econt[n];
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else {
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printf("Must be in range 0 - %d.\n", ce->necont);
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break;
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}
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}
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}
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}
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else if (!strcmp(cmd, "data")) {
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if (av[1] && isdigit(*av[1])) {
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n = atoi(av[1]);
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if (n < ce->ndcont) {
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printf(ce->dcont[n]);
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fputs("\n", stdout);
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}
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else if (ce->ndcont == 0)
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printf("No data at this node.\n");
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else printf("Must be in range 0 - %d.\n", ce->ndcont);
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}
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}
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/* show where we are in the tree */
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else if (!strcmp(cmd, "where")) PrintLocation(ce, stdout);
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/* show where we are in the tree */
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else if (!strcmp(cmd, "pwd")) PrElemPlusID(ce);
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/* perform query with yes/no answer */
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else if (!strcmp(cmd, "q") && av[1] && av[2])
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do_query(ce, av[1], av[2]);
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/* perform query printing paths to matching elements */
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else if (!strcmp(cmd, "find") && av[1] && av[2])
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do_find(ce, av);
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/* list locations where specified ID(s) occur */
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else if (!strcmp(cmd, "id")) {
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if (ac <= 1) continue;
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if (*av[1] == '?') PrintIDList();
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else {
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/* short: "id i1 i2 ...", long: "id -l i1 i2 ..." */
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if (!strcmp(av[1], "-l")) n = 2;
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else n = 1;
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for (i=n; i<ac; i++) {
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if ((e = FindElemByID(av[i]))) {
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if (n == 2) { /* long (multiline) format */
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if (n != i) putchar('\n');
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PrintLocation(e, stdout);
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}
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else PrElemPlusID(e);
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}
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else printf("Element with ID '%s' not found.\n", av[i]);
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}
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}
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}
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/* show and set variables */
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else if (!strcmp(cmd, "show") && av[1]) {
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printf("%s\n", FindMappingVal(Variables, av[1]));
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}
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else if (!strcmp(cmd, "set") && av[1] && av[2]) {
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SetMappingNV(Variables, av[1], av[2]);
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}
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/* print summary of tag usage */
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else if (!strcmp(cmd, "sum")) {
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if (ac > 1) PrintElemSummary(ce);
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else PrintElemSummary(DocTree);
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}
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/* print element tree */
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else if (!strcmp(cmd, "tree")) {
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if (ac > 1) PrintElemTree(ce);
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else PrintElemTree(DocTree);
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}
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/* print statistics */
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else if (!strcmp(cmd, "stat")) {
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if (ac > 1) PrintStats(ce);
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else PrintStats(DocTree);
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}
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/* print context of each element of tree */
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else if (!strcmp(cmd, "cont")) {
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if (ac > 1) PrintContext(ce);
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else PrintContext(DocTree);
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}
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/* print translation, given transpec */
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else if (!strcmp(cmd, "tran")) {
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FILE *fp;
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if (ac > 2){
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if (!(fp = fopen(av[2], "w"))) {
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perror("Can not open output file");
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continue;
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}
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}
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else fp = stdout;
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DoTranslate(ce, av[1], fp);
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if (ac > 2) fclose(fp);
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}
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else if (!strcmp(cmd, "sdata")){
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sdatafile = strdup(av[1]);
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ReadSDATA(sdatafile);
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}
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else if (!strcmp(cmd, "cmap")){
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cmapfile = strdup(av[1]);
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ReadCharMap(cmapfile);
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}
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else if (!strcmp(cmd, "help") || *cmd == '?') {
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sv = br_help_msg;
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while (*sv) puts(*sv++);
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}
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/* quit (control-D also works) */
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else if (!strcmp(cmd, "quit")) break;
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else
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fprintf(stderr, "Unknown command '%s' - ingored.\n", cmd);
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}
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putc(NL, stdout);
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}
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/* ______________________________________________________________________ */
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/* Do the "ls" command.
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* Arguments:
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* Pointer to element under consideration.
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* Arg count from command line (this command, not the shell command).
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* Arg vector.
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*/
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static void
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ls_node(
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Element_t *e,
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int ac,
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char **av
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)
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{
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int i;
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char buf[LINESIZE];
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if (ac > 1 && !strcmp(av[1], "-n")) {
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for(i=0; i<e->ncont; i++) {
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if (IsContElem(e,i)) printf("%s\n", ContElem(e,i)->gi);
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else if (IsContData(e,i)) printf("#data %s\n", ContData(e,i));
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else if (IsContPI(e,i)) printf("#pi %s\n", ContData(e,i));
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}
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return;
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}
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printf("Element: %s\tLineNumber: %d\n", e->gi, e->lineno);
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if (e->parent)
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printf("Context: %s\n", FindContext(e, 20, buf));
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if (e->natts) {
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printf("%d attributes:\n", e->natts);
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for (i=0; i<e->natts; i++)
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printf("\t%2d: %s = '%s'\n", i, e->atts[i].name, e->atts[i].sval);
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}
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if (e->entity) {
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printf("Entity & notation information:\n");
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if (e->entity->ename)
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printf("Entity name: %s\n", e->entity->ename);
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if (e->entity->nname)
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printf("Notation name: %s\n", e->entity->nname);
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if (e->entity->sysid)
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printf("Sys id: %s\n", e->entity->sysid);
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if (e->entity->pubid)
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printf("Pub id: %s\n", e->entity->pubid);
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if (e->entity->fname)
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printf("Filename: %s\n", e->entity->fname);
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}
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if (e->my_eorder >= 0)
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printf("My order among my siblings: %d\n", e->my_eorder);
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if (e->necont) {
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printf("%d child element nodes:\n", e->necont);
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for(i=0; i<e->necont; i++) printf("\t%2d: %s\n", i, e->econt[i]->gi);
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}
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if (e->ndcont) {
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printf("%d child data nodes:\n", e->ndcont);
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for(i=0; i<e->ndcont; i++) {
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if (strlen(e->dcont[i]) < 40)
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printf("\t%2d: %s\n", i, e->dcont[i]);
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else
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printf("\t%2d: %-40.40s...\n", i, e->dcont[i]);
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}
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}
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}
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/* ______________________________________________________________________ */
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/* Perform query. Syntax: find relationship gi. Tells whether gi has
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* given relationship to current element. Result (message) sent to stdout.
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* Args:
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* Pointer to element under consideration.
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* Pointer to name of relationship. (see FindRelByName() for names)
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* Pointer to GI to look for.
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*/
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static void
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do_query(
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Element_t *e,
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char *rel,
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char *gi
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)
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{
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char *cp;
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Relation_t r;
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Element_t *ep;
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for (cp=gi; *cp; cp++) if (islower(*cp)) *cp = toupper(*cp);
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if ((r = FindRelByName(rel)) == REL_Unknown) {
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return;
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}
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ep = QRelation(e, gi, r);
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printf("%s, '%s' is%s %s of '%s'.\n", (ep ? "Yes" : "No"), gi,
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(ep ? "" : " not"), rel, e->gi);
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}
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/* ______________________________________________________________________ */
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/* Print path to the element and its ID (if it has one) on a single line.
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* Arguments:
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* Pointer to element under consideration.
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*/
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static void
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PrElemPlusID(
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Element_t *e
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)
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{
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char buf[LINESIZE];
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if (e->id) printf("%s -- ID=%s\n", FindElementPath(e, buf), e->id);
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else printf("%s\n", FindElementPath(e, buf));
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}
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/* ______________________________________________________________________ */
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/* Print path to the element and its ID (if it has one) on a single line.
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* Arguments:
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* Pointer to element under consideration.
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*/
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static void
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match_gi(
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Element_t *e,
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char **av
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)
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{
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if (!strcmp(av[1], e->gi)) PrElemPlusID(e);
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}
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/* Shorthand for defining simple finctions, which are just interfaces to
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* calling QRelation(). DescendTree() only passes ptr to element. */
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#define MATCH(Fun,Rel) \
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static void Fun(Element_t *e, char **av) \
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{ if (QRelation(e, av[1], Rel)) PrElemPlusID(e); }
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MATCH(match_parent, REL_Parent)
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MATCH(match_child, REL_Child)
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MATCH(match_anc, REL_Ancestor)
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MATCH(match_desc, REL_Descendant)
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MATCH(match_sib, REL_Sibling)
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static void
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match_attr(
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Element_t *e,
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char **av
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)
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{
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char *atval;
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if ((atval = FindAttValByName(e, av[1])) && !strcmp(av[2], atval))
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PrElemPlusID(e);
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}
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static void
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match_cont(
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Element_t *e,
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char **av
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)
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{
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int i;
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for (i=0; i<e->ncont; i++) {
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if (IsContData(e,i) && strstr(ContData(e,i), av[1])) {
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PrElemPlusID(e);
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return;
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}
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}
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}
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/* Find an element, given the criteria on its command line.
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* Arguments:
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* Pointer to element under consideration.
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*/
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static void
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do_find(
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Element_t *e,
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char **av
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)
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{
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av++;
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if (!strcmp(av[0], ".")) av++;
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else e = DocTree;
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if (!strcmp(av[0], "gi")) DescendTree(e, match_gi, 0, 0, av);
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else if (!strcmp(av[0], "attr")) DescendTree(e, match_attr, 0, 0, av);
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else if (!strcmp(av[0], "parent")) DescendTree(e, match_parent, 0, 0, av);
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else if (!strcmp(av[0], "child")) DescendTree(e, match_child, 0, 0, av);
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else if (!strcmp(av[0], "cont")) DescendTree(e, match_cont, 0, 0, av);
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else if (!strcmp(av[0], "sib")) DescendTree(e, match_sib, 0, 0, av);
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else if (!strcmp(av[0], "desc")) DescendTree(e, match_desc, 0, 0, av);
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else if (!strcmp(av[0], "anc")) DescendTree(e, match_anc, 0, 0, av);
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else fprintf(stderr, "Unknown find command: %s.\n", av[0]);
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}
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/* ______________________________________________________________________ */
|
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