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More robust templating

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This commit is contained in:
Jesse van den Kieboom 2014-01-02 15:06:21 +01:00
parent 9b71f69420
commit 5ebd683917
1 changed files with 55 additions and 25 deletions
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80
libgitg/resources/diff-view-html-builder.js
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@ -3,6 +3,56 @@ function html_escape(s)
return s.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
}
function Template(template, placeholders)
{
var components = [template];
for (var i = 0; i < placeholders.length; i++)
{
var name = placeholders[i];
var varspec = '\\$\\{' + name + '\\}';
var r = new RegExp('<!-- ' + varspec + ' -->|' + varspec, 'g');
var newcomp = [];
for (var j = 0; j < components.length; j += 2)
{
var parts = components[j].split(r);
for (var k = 0; k < parts.length; k++)
{
newcomp.push(parts[k]);
if (k != parts.length - 1)
{
newcomp.push(name);
}
}
if (j < components.length - 1)
{
newcomp.push(components[j + 1]);
}
}
components = newcomp;
}
this.components = components;
}
Template.prototype.execute = function(replacements) {
var ret = '';
for (var i = 0; i < this.components.length - 1; i += 2)
{
var name = this.components[i + 1];
ret += this.components[i] + replacements[name];
}
return ret + this.components[this.components.length - 1];
}
function diff_file(file, lnstate, data)
{
tabrepl = '<span class="tab" style="width: ' + data.settings.tab_width + 'ex">\t</span>';
@ -142,7 +192,6 @@ function diff_file(file, lnstate, data)
file_classes = 'background';
}
var template = data.file_template;
var repls = {
'FILE_PATH': file_path,
'FILE_BODY': file_body,
@ -151,25 +200,12 @@ function diff_file(file, lnstate, data)
'FILE_CLASSES': file_classes
};
for (var r in repls)
{
// As we are using the repl in the later 'template.replace()'
// as the replacement in which character '$' is special, we
// need to make sure each occurence of '$' character in the
// replacement is represented as '$$' (which stands for a
// literal '$'), so, we need to use '$$$$' here to get '$$'.
var repl = repls[r].replace(/\$/g, '$$$$');
template = template.replace(lnstate.replacements[r], repl);
}
return template;
return lnstate.template.execute(repls);
}
function diff_files(files, lines, maxlines, data)
{
var f = '';
var repl = [
var placeholders = [
'FILE_PATH',
'FILE_BODY',
'FILE_STATS',
@ -177,13 +213,7 @@ function diff_files(files, lines, maxlines, data)
'FILE_CLASSES'
];
var replacements = {};
for (var r in repl)
{
var varspec = '\\$\\{' + repl[r] + '\\}';
replacements[repl[r]] = new RegExp('<!-- ' + varspec + ' -->|' + varspec, 'g');
}
var template = new Template(data.file_template, placeholders);
var lnstate = {
lines: lines,
@ -192,11 +222,11 @@ function diff_files(files, lines, maxlines, data)
processed: 0,
nexttick: 0,
tickfreq: 0.01,
replacements: replacements,
template: template,
};
// special empty background filler
f += diff_file({hunks: [null]}, lnstate, data);
var f = diff_file({hunks: [null]}, lnstate, data);
for (var i = 0; i < files.length; ++i)
{