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