Compare commits

..

No commits in common. "8c0548fc741522016fb7953dbfc7994a230593fd" and "9dabc237e0cf6e08c97d40fe037a32149bf77710" have entirely different histories.

3 changed files with 18 additions and 71 deletions

View file

@ -227,7 +227,7 @@ pub const Response = struct {
defer stream.close(); defer stream.close();
const writer = stream.writer(); const writer = stream.writer();
try @import("template").execute(writer, .{}, templ, data); try @import("template").execute(writer, templ, data);
try stream.finish(); try stream.finish();
} }

View file

@ -1,42 +1,36 @@
const std = @import("std"); const std = @import("std");
pub fn main() !void { pub fn main() !void {
try execute( try execute(std.io.getStdOut().writer(), @embedFile("./test.tmp.html"), .{
std.io.getStdOut().writer(), .community = .{ .name = "abcd" },
.{ .test_tmpl = "{.x}" }, .foo = [_][]const u8{ "5", "4", "3", "2", "1" },
@embedFile("./test.tmp.html"), .baz = [_][]const []const u8{
.{ &.{ "5", "4", "3", "2", "1" },
.community = .{ .name = "abcd" }, &.{ "5", "4", "3", "2", "1" },
.foo = [_][]const u8{ "5", "4", "3", "2", "1" },
.baz = [_][]const []const u8{
&.{ "5", "4", "3", "2", "1" },
&.{ "5", "4", "3", "2", "1" },
},
.bar = .{ .x = "x" },
.qux = false,
.quxx = true,
}, },
); .qux = false,
.quxx = true,
});
} }
pub fn execute(writer: anytype, comptime other_templates: anytype, comptime template: []const u8, args: anytype) !void { pub fn execute(writer: anytype, comptime template: []const u8, args: anytype) !void {
@setEvalBranchQuota(@intCast(u32, template.len * 8)); @setEvalBranchQuota(@intCast(u32, template.len * 8));
const tokens = comptime parseTemplateTokens(ControlTokenIter{ .text = template }); const tokens = comptime parseTemplateTokens(ControlTokenIter{ .text = template });
const tmpl = comptime parseTemplate(tokens, 0, .root); const tmpl = comptime parseTemplate(tokens, 0, .root);
try executeTemplate(writer, other_templates, tmpl.items, args, .{}); try executeTemplate(writer, tmpl.items, args, .{});
} }
fn executeTemplate(writer: anytype, comptime templates: anytype, comptime items: []const TemplateItem, args: anytype, captures: anytype) !void { fn executeTemplate(writer: anytype, comptime items: []const TemplateItem, args: anytype, captures: anytype) !void {
inline for (items) |it| { inline for (items) |it| {
switch (it) { switch (it) {
.text => |text| try writer.writeAll(text), .text => |text| try writer.writeAll(text),
.statement => |stmt| try executeStatement(writer, templates, stmt, args, captures), .statement => |stmt| try executeStatement(writer, stmt, args, captures),
} }
} }
} }
fn executeStatement(writer: anytype, comptime templates: anytype, comptime stmt: Statement, args: anytype, captures: anytype) !void { fn executeStatement(writer: anytype, comptime stmt: Statement, args: anytype, captures: anytype) !void {
switch (stmt) { switch (stmt) {
.expression => |expr| { .expression => |expr| {
const val = evaluateExpression(expr, args, captures); const val = evaluateExpression(expr, args, captures);
@ -49,7 +43,6 @@ fn executeStatement(writer: anytype, comptime templates: anytype, comptime stmt:
for (iterable) |v| { for (iterable) |v| {
try executeTemplate( try executeTemplate(
writer, writer,
templates,
subtemplate, subtemplate,
args, args,
addCapture(captures, loop.header.capture, v), addCapture(captures, loop.header.capture, v),
@ -60,19 +53,14 @@ fn executeStatement(writer: anytype, comptime templates: anytype, comptime stmt:
const condition = evaluateExpression(if_stmt.header.condition, args, captures); const condition = evaluateExpression(if_stmt.header.condition, args, captures);
const subtemplate = if_stmt.subtemplate; const subtemplate = if_stmt.subtemplate;
if (condition) { if (condition) {
try executeTemplate(writer, templates, subtemplate, args, captures); try executeTemplate(writer, subtemplate, args, captures);
} else { } else {
if (if_stmt.else_branch) |branch| switch (branch) { if (if_stmt.else_branch) |branch| switch (branch) {
.@"else" => |subtmpl| try executeTemplate(writer, templates, subtmpl, args, captures), .@"else" => |subtmpl| try executeTemplate(writer, subtmpl, args, captures),
.elif => |elif| try executeStatement(writer, templates, .{ .@"if" = elif.* }, args, captures), .elif => |elif| try executeStatement(writer, .{ .@"if" = elif.* }, args, captures),
}; };
} }
}, },
.call_template => |call| {
const new_template = @field(templates, call.template_name);
try execute(writer, templates, new_template, evaluateExpression(call.args, args, captures));
//std.log.debug("calling template {s} with arg {any}", .{ call.template_name, call.args });
},
//else => @compileError("TODO"), //else => @compileError("TODO"),
} }
} }
@ -263,11 +251,6 @@ fn parseTemplate(
break cb break cb
else else
@compileError("Unexpected #else tag"), @compileError("Unexpected #else tag"),
.call_template => |call| {
items = items ++ [_]TemplateItem{.{
.statement = .{ .call_template = call },
}};
},
} }
}, },
} }
@ -394,11 +377,6 @@ fn parseControlBlock(comptime tokens: ControlTokenIter) ParseResult(ControlToken
iter = result.new_iter; iter = result.new_iter;
break .{ .elif_header = result.item }; break .{ .elif_header = result.item };
}, },
.template => {
const result = parseCallTemplate(iter);
iter = result.new_iter;
break .{ .call_template = result.item };
},
//else => @compileError("TODO"), //else => @compileError("TODO"),
} }
@ -551,27 +529,6 @@ fn parseDeref(comptime tokens: ControlTokenIter) ParseResult(ControlTokenIter, [
} }
} }
fn parseCallTemplate(comptime tokens: ControlTokenIter) ParseResult(ControlTokenIter, CallTemplate) {
comptime {
var iter = tokens;
const template_name = while (iter.next()) |token| switch (token) {
.text => |t| break t,
.whitespace => {},
else => @compileError("Unexpected token"),
} else @compileError("Unexpected end of template");
const args = parseExpression(iter);
return .{
.new_iter = args.new_iter,
.item = .{
.template_name = template_name,
.args = args.item,
},
};
}
}
fn ParseResult(comptime It: type, comptime T: type) type { fn ParseResult(comptime It: type, comptime T: type) type {
return struct { return struct {
new_iter: It, new_iter: It,
@ -608,11 +565,6 @@ const If = struct {
}, },
}; };
const CallTemplate = struct {
template_name: []const u8,
args: Expression,
};
const IfHeader = struct { const IfHeader = struct {
condition: Expression, condition: Expression,
}; };
@ -621,7 +573,6 @@ const Statement = union(enum) {
expression: Expression, expression: Expression,
@"for": For, @"for": For,
@"if": If, @"if": If,
call_template: CallTemplate,
}; };
const ControlBlock = struct { const ControlBlock = struct {
@ -633,7 +584,6 @@ const ControlBlock = struct {
end_if: void, end_if: void,
@"else": void, @"else": void,
elif_header: IfHeader, elif_header: IfHeader,
call_template: CallTemplate,
}; };
block: Data, block: Data,
strip_before: bool, strip_before: bool,
@ -645,7 +595,6 @@ const Keyword = enum {
@"if", @"if",
@"else", @"else",
@"elif", @"elif",
@"template",
}; };
const EndKeyword = enum { const EndKeyword = enum {

View file

@ -21,8 +21,6 @@
{=#else=} {=#else=}
neither neither
{=/if} {=/if}
<template>{#template test_tmpl .bar}</template>
</section> </section>
</body> </body>
</html> </html>