From 3a754133dbc138390503341fd2e9beba3e43aa4b Mon Sep 17 00:00:00 2001
From: Jose Antonio Marquez
Date: Fri, 27 Jan 2012 12:05:17 -0800
Subject: Merged old FileIO

---
 imports/codemirror/lib/util/search.js | 114 ++++++++++++++++++++++++++++++++++
 1 file changed, 114 insertions(+)
 create mode 100755 imports/codemirror/lib/util/search.js

(limited to 'imports/codemirror/lib/util/search.js')

diff --git a/imports/codemirror/lib/util/search.js b/imports/codemirror/lib/util/search.js
new file mode 100755
index 00000000..63ebca9b
--- /dev/null
+++ b/imports/codemirror/lib/util/search.js
@@ -0,0 +1,114 @@
+// 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 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(/^\/(.*)\/$/);
+    return isRE ? new RegExp(isRE[1]) : 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 = cm.getSearchCursor(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 = cm.getSearchCursor(state.query, rev ? state.posFrom : state.posTo);
+    if (!cursor.find(rev)) {
+      cursor = cm.getSearchCursor(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.operation(function() {
+            for (var cursor = cm.getSearchCursor(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 = cm.getSearchCursor(query, cm.getCursor());
+          function advance() {
+            var start = cursor.from(), match;
+            if (!(match = cursor.findNext())) {
+              cursor = cm.getSearchCursor(query);
+              if (!(match = cursor.findNext()) ||
+                  (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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