119 lines
4.9 KiB
JavaScript
119 lines
4.9 KiB
JavaScript
// Define search commands. Depends on dialog.js or another
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// implementation of the openDialog method.
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// Replace works a little oddly -- it will do the replace on the next
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// Ctrl-G (or whatever is bound to findNext) press. You prevent a
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// replace by making sure the match is no longer selected when hitting
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// Ctrl-G.
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(function() {
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function SearchState() {
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this.posFrom = this.posTo = this.query = null;
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this.marked = [];
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}
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function getSearchState(cm) {
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return cm._searchState || (cm._searchState = new SearchState());
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}
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function getSearchCursor(cm, query, pos) {
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// Heuristic: if the query string is all lowercase, do a case insensitive search.
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return cm.getSearchCursor(query, pos, typeof query == "string" && query == query.toLowerCase());
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}
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function dialog(cm, text, shortText, f) {
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if (cm.openDialog) cm.openDialog(text, f);
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else f(prompt(shortText, ""));
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}
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function confirmDialog(cm, text, shortText, fs) {
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if (cm.openConfirm) cm.openConfirm(text, fs);
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else if (confirm(shortText)) fs[0]();
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}
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function parseQuery(query) {
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var isRE = query.match(/^\/(.*)\/([a-z]*)$/);
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return isRE ? new RegExp(isRE[1], isRE[2].indexOf("i") == -1 ? "" : "i") : query;
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}
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var queryDialog =
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'Search: <input type="text" style="width: 10em"/> <span style="color: #888">(Use /re/ syntax for regexp search)</span>';
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function doSearch(cm, rev) {
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var state = getSearchState(cm);
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if (state.query) return findNext(cm, rev);
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dialog(cm, queryDialog, "Search for:", function(query) {
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cm.operation(function() {
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if (!query || state.query) return;
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state.query = parseQuery(query);
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if (cm.lineCount() < 2000) { // This is too expensive on big documents.
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for (var cursor = getSearchCursor(cm, state.query); cursor.findNext();)
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state.marked.push(cm.markText(cursor.from(), cursor.to(), "CodeMirror-searching"));
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}
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state.posFrom = state.posTo = cm.getCursor();
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findNext(cm, rev);
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});
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});
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}
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function findNext(cm, rev) {cm.operation(function() {
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var state = getSearchState(cm);
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var cursor = getSearchCursor(cm, state.query, rev ? state.posFrom : state.posTo);
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if (!cursor.find(rev)) {
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cursor = getSearchCursor(cm, state.query, rev ? {line: cm.lineCount() - 1} : {line: 0, ch: 0});
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if (!cursor.find(rev)) return;
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}
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cm.setSelection(cursor.from(), cursor.to());
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state.posFrom = cursor.from(); state.posTo = cursor.to();
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});}
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function clearSearch(cm) {cm.operation(function() {
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var state = getSearchState(cm);
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if (!state.query) return;
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state.query = null;
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for (var i = 0; i < state.marked.length; ++i) state.marked[i].clear();
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state.marked.length = 0;
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});}
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var replaceQueryDialog =
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'Replace: <input type="text" style="width: 10em"/> <span style="color: #888">(Use /re/ syntax for regexp search)</span>';
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var replacementQueryDialog = 'With: <input type="text" style="width: 10em"/>';
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var doReplaceConfirm = "Replace? <button>Yes</button> <button>No</button> <button>Stop</button>";
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function replace(cm, all) {
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dialog(cm, replaceQueryDialog, "Replace:", function(query) {
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if (!query) return;
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query = parseQuery(query);
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dialog(cm, replacementQueryDialog, "Replace with:", function(text) {
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if (all) {
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cm.compoundChange(function() { cm.operation(function() {
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for (var cursor = getSearchCursor(cm, query); cursor.findNext();) {
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if (typeof query != "string") {
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var match = cm.getRange(cursor.from(), cursor.to()).match(query);
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cursor.replace(text.replace(/\$(\d)/, function(w, i) {return match[i];}));
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} else cursor.replace(text);
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}
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});});
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} else {
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clearSearch(cm);
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var cursor = getSearchCursor(cm, query, cm.getCursor());
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function advance() {
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var start = cursor.from(), match;
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if (!(match = cursor.findNext())) {
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cursor = getSearchCursor(cm, query);
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if (!(match = cursor.findNext()) ||
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(start && cursor.from().line == start.line && cursor.from().ch == start.ch)) return;
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}
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cm.setSelection(cursor.from(), cursor.to());
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confirmDialog(cm, doReplaceConfirm, "Replace?",
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[function() {doReplace(match);}, advance]);
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}
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function doReplace(match) {
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cursor.replace(typeof query == "string" ? text :
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text.replace(/\$(\d)/, function(w, i) {return match[i];}));
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advance();
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}
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advance();
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}
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});
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});
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}
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CodeMirror.commands.find = function(cm) {clearSearch(cm); doSearch(cm);};
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CodeMirror.commands.findNext = doSearch;
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CodeMirror.commands.findPrev = function(cm) {doSearch(cm, true);};
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CodeMirror.commands.clearSearch = clearSearch;
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CodeMirror.commands.replace = replace;
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CodeMirror.commands.replaceAll = function(cm) {replace(cm, true);};
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})();
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