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Added filters parameter to peglint and playground

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This commit is contained in:
yhirose 2020-05-24 22:14:43 -04:00
parent 3c58f26635
commit 370067f013
7 changed files with 86 additions and 28 deletions
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11
docs/index.html
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@ -1,14 +1,14 @@
<!DOCTYPE html>
<html lang="en">
<head>
<title>PEG Playground - v0.1.5</title>
<title>PEG Playground - v0.1.6</title>
<link rel="stylesheet" href="style.css" media="all">
</head>
<body>
<div id="main">
<div class="editor-container">
<ul class="editor-header">
<li><span>Grammar:</span></li>
<li><span>Grammar</span></li>
<li><span id="grammar-validation" class="editor-validation">Valid</span></li>
</ul>
<pre id="grammar-editor" class="editor-area">{{syntax}}</pre>
@ -16,11 +16,16 @@
</div>
<div class="editor-container">
<ul class="editor-header">
<li><span>Code:</span></li>
<li><span>Source Code</span></li>
<li><span id="code-validation" class="editor-validation">Valid</span></li>
</ul>
<pre id="code-editor" class="editor-area">{{source}}</pre>
<div class="editor-sub-header">AST</div>
<pre id="code-ast" class="editor-area"></pre>
<div class="editor-sub-header">Optimized AST&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
On:&nbsp;<input id="optimize" type="checkbox"></input>&nbsp;&nbsp;
Filters:&nbsp;<input id="filters" type="text" size="48" placeholder="Enter definition names to filter delimited by comma..."></input>
</div>
<pre id="code-ast-optimized" class="editor-area"></pre>
<div id="code-info" class="editor-info"></div>
</div>

15
docs/index.js
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@ -27,6 +27,9 @@ codeAstOptimized.setOptions({
})
codeAstOptimized.renderer.$cursorLayer.element.style.opacity=0;
$('#optimize').prop('checked', localStorage.getItem('optimize') == 'true');
$('#filters').val(localStorage.getItem('filters'));
function generateErrorListHTML(errors) {
let html = '<ul>';
@ -48,8 +51,14 @@ function parse() {
const $codeInfo = $('#code-info');
const codeText = code.getValue();
const optimize = $('#optimize').prop('checked');
const filters = $('#filters').val();
console.log(optimize, filters);
localStorage.setItem('grammarText', grammarText);
localStorage.setItem('codeText', codeText);
localStorage.setItem('optimize', optimize);
localStorage.setItem('filters', filters);
$grammarInfo.html('');
$grammarValidation.hide();
@ -62,7 +71,7 @@ function parse() {
return;
}
const data = JSON.parse(Module.lint(grammarText, codeText));
const data = JSON.parse(Module.lint(grammarText, codeText, optimize, filters));
const isValid = data.grammar.length === 0;
if (isValid) {
@ -105,6 +114,10 @@ function makeOnClickInInfo(editor) {
$('#grammar-info').on('click', 'li', makeOnClickInInfo(grammar));
$('#code-info').on('click', 'li', makeOnClickInInfo(code));
// Event handing in the AST optimazation
$('#optimize').on('click', setupTimer);
$('#filters').on('keyup', setupTimer);
// Show page
$('#main').css({
'display': 'flex',

40
docs/native.cpp
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@ -1,12 +1,12 @@
#include <emscripten/bind.h>
#include "../peglib.h"
#include <cstdio>
#include <emscripten/bind.h>
#include <functional>
#include <iomanip>
#include <sstream>
// https://stackoverflow.com/questions/7724448/simple-json-string-escape-for-c/33799784#33799784
std::string escape_json(const std::string& s) {
std::string escape_json(const std::string &s) {
std::ostringstream o;
for (auto c : s) {
if (c == '"' || c == '\\' || ('\x00' <= c && c <= '\x1f')) {
@ -18,12 +18,11 @@ std::string escape_json(const std::string& s) {
return o.str();
}
std::function<void(size_t, size_t, const std::string&)> makeJSONFormatter(std::string& json, bool& init) {
std::function<void(size_t, size_t, const std::string &)>
makeJSONFormatter(std::string &json, bool &init) {
init = true;
return [&](size_t ln, size_t col, const std::string& msg) mutable {
if (!init) {
json += ",";
}
return [&](size_t ln, size_t col, const std::string &msg) mutable {
if (!init) { json += ","; }
json += "{";
json += R"("ln":)" + std::to_string(ln) + ",";
json += R"("col":)" + std::to_string(col) + ",";
@ -34,7 +33,8 @@ std::function<void(size_t, size_t, const std::string&)> makeJSONFormatter(std::s
};
}
bool parse_grammar(const std::string& text, peg::parser& peg, std::string& json) {
bool parse_grammar(const std::string &text, peg::parser &peg,
std::string &json) {
bool init;
peg.log = makeJSONFormatter(json, init);
json += "[";
@ -43,8 +43,8 @@ bool parse_grammar(const std::string& text, peg::parser& peg, std::string& json)
return ret;
}
bool parse_code(const std::string& text, peg::parser& peg, std::string& json,
std::shared_ptr<peg::Ast>& ast) {
bool parse_code(const std::string &text, peg::parser &peg, std::string &json,
std::shared_ptr<peg::Ast> &ast) {
peg.enable_ast();
bool init;
peg.log = makeJSONFormatter(json, init);
@ -54,7 +54,20 @@ bool parse_code(const std::string& text, peg::parser& peg, std::string& json,
return ret;
}
std::string lint(const std::string& grammarText, const std::string& codeText) {
inline std::vector<std::string> splitFiltersText(const std::string &s) {
std::vector<std::string> elems;
std::stringstream ss(s);
std::string elem;
while (getline(ss, elem, ',')) {
if (!elem.empty()) {
elems.push_back(elem);
}
}
return elems;
}
std::string lint(const std::string &grammarText, const std::string &codeText,
bool optimize, const std::string &filtersText) {
std::string grammarResult;
std::string codeResult;
std::string astResult;
@ -67,8 +80,9 @@ std::string lint(const std::string& grammarText, const std::string& codeText) {
std::shared_ptr<peg::Ast> ast;
if (parse_code(codeText, peg, codeResult, ast)) {
astResult = escape_json(peg::ast_to_s(ast));
astResultOptimized =
escape_json(peg::ast_to_s(peg::AstOptimizer(true).optimize(ast)));
auto filters = splitFiltersText(filtersText);
astResultOptimized = escape_json(
peg::ast_to_s(peg::AstOptimizer(optimize, filters).optimize(ast)));
}
}

5
docs/native.js
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docs/native.wasm
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4
docs/style.css
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@ -65,4 +65,6 @@ body {
.editor-info li {
cursor: pointer;
}
.editor-sub-header {
padding: 4px 8px;
}

39
lint/peglint.cc
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@ -22,9 +22,20 @@ inline bool read_file(const char *path, vector<char> &buff) {
return true;
}
inline vector<string> split(const string &s, char delim) {
vector<string> elems;
stringstream ss(s);
string elem;
while (getline(ss, elem, delim)) {
elems.push_back(elem);
}
return elems;
}
int main(int argc, const char **argv) {
auto opt_ast = false;
auto opt_optimize_ast_nodes = false;
vector<string> optimize_ast_nodes_filters;
auto opt_help = false;
auto opt_source = false;
vector<char> source;
@ -38,9 +49,13 @@ int main(int argc, const char **argv) {
opt_help = true;
} else if (string("--ast") == arg) {
opt_ast = true;
} else if (string("--optimize_ast_nodes") == arg ||
string("--opt") == arg) {
} else if (string("--opt") == arg) {
opt_optimize_ast_nodes = true;
} else if (string("--filters") == arg) {
if (argi < argc) {
std::string s = argv[argi++];
optimize_ast_nodes_filters = split(s, ',');
}
} else if (string("--source") == arg) {
opt_source = true;
if (argi < argc) {
@ -55,9 +70,16 @@ int main(int argc, const char **argv) {
}
if (path_list.empty() || opt_help) {
cerr << "usage: peglint [--ast] [--optimize_ast_nodes|--opt] [--source "
"text] [--trace] [grammar file path] [source file path]"
<< endl;
cerr << "usage: grammar_file_path [source_file_path]" << endl
<< endl
<< " options:" << endl
<< " --ast: show AST tree" << endl
<< " --opt: optimaze AST nodes" << endl
<< " --filters definition_names: comma delimitted definition names "
"for optimazation"
<< endl
<< " --source: source text" << endl
<< " --trace: show trace messages" << endl;
return 1;
}
@ -142,7 +164,12 @@ int main(int argc, const char **argv) {
std::shared_ptr<peg::Ast> ast;
if (!parser.parse_n(source.data(), source.size(), ast)) { return -1; }
ast = peg::AstOptimizer(opt_optimize_ast_nodes).optimize(ast);
std::cout << "filters..." << std::endl;
for (auto name : optimize_ast_nodes_filters) {
std::cout << name << std::endl;
}
ast = peg::AstOptimizer(opt_optimize_ast_nodes, optimize_ast_nodes_filters)
.optimize(ast);
std::cout << peg::ast_to_s(ast);
} else {