52 lines
1.7 KiB
TypeScript
52 lines
1.7 KiB
TypeScript
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/**
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* Shared helpers for the two codegen drivers (generate.ts — mode schemas —
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* and generate-midi-devices.ts — MIDI device templates).
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*
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* The two drivers stay separate FILES on purpose: they read different schema
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* directories, validate against different meta-schemas, write to different
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* output dirs, and generate.ts's golden test (codegen/tests/golden_test.ts)
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* must not depend on MIDI-device schema state. None of that requires
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* duplicating these small string/fs helpers — they carry no per-driver
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* behaviour, so they live here once (ST12, simplification 2026-07).
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*/
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import { readFileSync, existsSync, mkdirSync } from "node:fs";
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/** Create a directory (and parents) if it doesn't already exist. */
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export function ensureDir(d: string): void {
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if (!existsSync(d)) {
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mkdirSync(d, { recursive: true });
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}
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}
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/** Read and JSON-parse a file. */
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export function readJSON<T>(path: string): T {
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return JSON.parse(readFileSync(path, "utf8")) as T;
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}
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/**
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* Convert snake_case to PascalCase.
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* "paf_synth" -> "PafSynth", "memlcelium" -> "Memlcelium"
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*/
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export function toPascalCase(snake: string): string {
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return snake
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.split("_")
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.map(s => (s.length === 0 ? s : s[0].toUpperCase() + s.slice(1)))
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.join("");
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}
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/**
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* Escape a string literal for embedding into a C++ string.
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* We expect ASCII identifiers + label text only; quote and backslash are escaped.
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*/
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export function cppStringLit(s: string): string {
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return '"' + s.replace(/\\/g, "\\\\").replace(/"/g, '\\"') + '"';
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}
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/**
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* Escape a string for a TS single-line single-quoted literal.
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*/
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export function tsStringLit(s: string): string {
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return "'" + s.replace(/\\/g, "\\\\").replace(/'/g, "\\'") + "'";
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}
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