75 lines
3.2 KiB
Plaintext
75 lines
3.2 KiB
Plaintext
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#include "demo_guard.h"
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void regex_row(String label, String result, String expect)
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{
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bool pass = (result == expect);
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<><tr>
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<td class="test-label"><?= label ?></td>
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<td class="test-result"><code><?= result ?></code></td>
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<td class="test-status <?= pass ? "pass" : "fail" ?>"><?= pass ? "pass" : "expected: " + expect ?></td>
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</tr></>
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}
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void regex_bool_row(String label, bool result, bool expect)
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{
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regex_row(label, result ? "true" : "false", expect ? "true" : "false");
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}
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RENDER(Request& context)
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{
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String text = "Contact ops@example.test or tag #uce, #docs, and café.";
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DTree first_email = regex_search("(?<user>[A-Za-z0-9._%+-]+)@(?<host>[A-Za-z0-9.-]+)", text);
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DTree tags = regex_search_all("#(?<tag>[A-Za-z0-9_]+)", text);
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StringList pieces = regex_split("\\s*,\\s*", "uce, components, markdown");
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<>
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<link rel="stylesheet" href='style.css'></link>
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<style>
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table.tests { width: 100%; border-collapse: collapse; margin-bottom: 8px; }
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table.tests td { padding: 6px 12px; border-bottom: 1px solid rgba(255,255,255,0.06); font-family: var(--font-mono); font-size: 0.88rem; }
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.test-label { color: var(--text-dim); white-space: nowrap; width: 1%; }
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.test-result code { background: var(--bg-code); padding: 2px 8px; border-radius: 4px; }
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.test-status.pass { color: #6f6; width: 1%; }
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.test-status.fail { color: #f66; }
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</style>
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<h1>
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<a href="index.uce">UCE Test</a>:
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Regular Expressions
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</h1>
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<p>UCE regex functions use PCRE2 and return ordinary UCE strings, lists, and DTree values.</p>
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<p>sample = <code><?= text ?></code></p>
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<h2>Validation And Search</h2>
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<table class="tests"><?
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regex_bool_row("regex_match(\"[A-Z][a-z]+\", \"Alice\")", regex_match("[A-Z][a-z]+", "Alice"), true);
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regex_bool_row("regex_match(\"[A-Z][a-z]+\", \"Alice!\")", regex_match("[A-Z][a-z]+", "Alice!"), false);
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regex_bool_row("regex_search(\"example\", text)[\"matched\"]", first_email["matched"].to_bool(), true);
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regex_row("first_email[\"match\"]", first_email["match"].to_string(), "ops@example.test");
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regex_row("first_email[\"named\"][\"user\"]", first_email["named"]["user"].to_string(), "ops");
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regex_row("first_email[\"named\"][\"host\"]", first_email["named"]["host"].to_string(), "example.test");
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regex_bool_row("regex_match(\"\\\\p{L}+\", \"café\")", regex_match("\\p{L}+", "café"), true);
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?></table>
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<h2>All Matches</h2>
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<table class="tests"><?
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regex_row("regex_search_all hashtags count", tags["count"].to_string(), "2.000000");
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regex_row("first hashtag", tags["matches"]["0"]["named"]["tag"].to_string(), "uce");
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regex_row("second hashtag", tags["matches"]["1"]["named"]["tag"].to_string(), "docs");
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?></table>
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<h2>Replace And Split</h2>
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<table class="tests"><?
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regex_row("regex_replace(\"#([A-Za-z0-9_]+)\", \"<tag>$1</tag>\", \"#uce\")", regex_replace("#([A-Za-z0-9_]+)", "<tag>$1</tag>", "#uce"), "<tag>uce</tag>");
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regex_row("join(regex_split(\"\\\\s*,\\\\s*\", ...), \"|\")", join(pieces, "|"), "uce|components|markdown");
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regex_row("case-insensitive flag", regex_search("uce", "Hello UCE", "i")["match"].to_string(), "UCE");
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?></table>
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<h2>Structured Result</h2>
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<pre><?= json_encode(first_email) ?></pre>
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<p><a href="../doc/index.uce?p=regex_search">Read the regex API documentation</a></p>
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</>
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}
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