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Notebooks: Ensure quotes and backslashes are escaped properly in text editor model (#7497)

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* Ensure quotes and backslashes are escaped properly

* PR comment

* PR comments

* Reliably fix
This commit is contained in:
Chris LaFreniere
2019-10-03 19:21:01 -07:00
committed by GitHub
parent 6b29fd05bd
commit 8e1a2248e4
2 changed files with 266 additions and 13 deletions
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70
src/sql/workbench/parts/notebook/browser/models/notebookTextFileModel.ts
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@@ -39,11 +39,60 @@ export class NotebookTextFileModel {
// convert the range to leverage offsets in the json
if (contentChange && contentChange.modelContentChangedEvent && areRangePropertiesPopulated(cellGuidRange)) {
contentChange.modelContentChangedEvent.changes.forEach(change => {
// When writing to JSON we need to escape double quotes and backslashes
let textEscapedQuotesAndBackslashes = change.text.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
let startLineNumber = change.range.startLineNumber + cellGuidRange.startLineNumber - 1;
let endLineNumber = change.range.endLineNumber + cellGuidRange.startLineNumber - 1;
let startLineText = textEditorModel.textEditorModel.getLineContent(startLineNumber);
let endLineText = textEditorModel.textEditorModel.getLineContent(endLineNumber);
/* This gets the text on the start and end lines of the range where we'll be inserting text. We need to convert the escaped strings to unescaped strings.
Example:
Previous state
EDITOR:
""""
TEXTEDITORMODEL:
' "\"\"\"\""'
Now, user wants to insert text after the 4 double quotes, like so:
EDITOR:
""""sample text
TEXTEDITORMODEL (result):
' "\"\"\"\"sample text"'
Notice that we don't have a 1:1 mapping for characters from the editor to the text editor model, because the double quotes need to be escaped
(the same is true for backslashes).
Therefore, we need to determine (at both the start and end lines) the "real" start and end columns in the text editor model by counting escaped characters.
We do this by doing the following:
- Start with (escaped) text in the text editor model
- Unescape this text
- Get a substring of that text from the column in JSON until the change's startColumn (starting from the first " in the text editor model)
- Escape this substring
- Leverage the substring's length to calculate the "real" start/end columns
*/
let unescapedStartSubstring = startLineText.replace(/\\"/g, '"').replace(/\\\\/g, '\\').substr(cellGuidRange.startColumn, change.range.startColumn - 1);
let unescapedEndSubstring = endLineText.replace(/\\"/g, '"').replace(/\\\\/g, '\\').substr(cellGuidRange.startColumn, change.range.endColumn - 1);
// now we have the portion before the text to be inserted for both the start and end lines
// so next step is to escape " and \
let escapedStartSubstring = unescapedStartSubstring.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
let escapedEndSubstring = unescapedEndSubstring.replace(/\\/g, '\\\\').replace(/"/g, '\\"');
let computedStartColumn = escapedStartSubstring.length + cellGuidRange.startColumn + 1;
let computedEndColumn = escapedEndSubstring.length + cellGuidRange.startColumn + 1;
let convertedRange: IRange = {
startLineNumber: change.range.startLineNumber + cellGuidRange.startLineNumber - 1,
endLineNumber: change.range.endLineNumber + cellGuidRange.startLineNumber - 1,
startColumn: change.range.startColumn + cellGuidRange.startColumn,
endColumn: change.range.endColumn + cellGuidRange.startColumn
startLineNumber: startLineNumber,
endLineNumber: endLineNumber,
startColumn: computedStartColumn,
endColumn: computedEndColumn
};
// Need to subtract one because we're going from 1-based to 0-based
let startSpaces: string = ' '.repeat(cellGuidRange.startColumn - 1);
@@ -52,13 +101,12 @@ export class NotebookTextFileModel {
// this is another string
textEditorModel.textEditorModel.applyEdits([{
range: new Range(convertedRange.startLineNumber, convertedRange.startColumn, convertedRange.endLineNumber, convertedRange.endColumn),
text: change.text.split(this._eol).join('\\n\",'.concat(this._eol).concat(startSpaces).concat('\"'))
text: textEscapedQuotesAndBackslashes.split(/[\r\n]+/gm).join('\\n\",'.concat(this._eol).concat(startSpaces).concat('\"'))
}]);
});
} else {
return false;
return true;
}
return true;
return false;
}
public transformAndApplyEditForOutputUpdate(contentChange: NotebookContentChange, textEditorModel: TextFileEditorModel | UntitledEditorModel): boolean {
@@ -117,9 +165,7 @@ export class NotebookTextFileModel {
if (!textEditorModel || !contentChange || !contentChange.cells || !contentChange.cells[0] || !contentChange.cells[0].cellGuid) {
return false;
}
if (!this.getOutputNodeByGuid(textEditorModel, contentChange.cells[0].cellGuid)) {
this.updateOutputBeginRange(textEditorModel, contentChange.cells[0].cellGuid);
}
this.updateOutputBeginRange(textEditorModel, contentChange.cells[0].cellGuid);
let outputEndRange = this.getEndOfOutputs(textEditorModel, contentChange.cells[0].cellGuid);
let outputStartRange = this.getOutputNodeByGuid(textEditorModel, contentChange.cells[0].cellGuid);
if (outputStartRange && outputEndRange) {
@@ -253,7 +299,7 @@ export class NotebookTextFileModel {
}
function areRangePropertiesPopulated(range: Range) {
return range && range.startLineNumber && range.startColumn && range.endLineNumber && range.endColumn;
return range && range.startLineNumber !== 0 && range.startColumn !== 0 && range.endLineNumber !== 0 && range.endColumn !== 0;
}
function findOrSetCellGuidMatch(textEditorModel: TextFileEditorModel | UntitledEditorModel, cellGuid: string): FindMatch[] {