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working on fluent configuration, di annotations removed
working on fluent configuration, di annotations removed
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r134:511bcc634d65 ioc ts support
r134:511bcc634d65 ioc ts support
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StringFormat.ts
178 lines | 4.5 KiB | video/mp2t | TypeScriptLexer
/ src / main / ts / text / StringFormat.ts
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cin
working on fluent configuration, di annotations removed
 r134 import { isPrimitive, isNull, isKeyof, get } from "../safe";
cin
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 r55 import { MapOf } from "../interfaces";
type SubstFn = (name: string, format?: string) => string;
cin
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 r115 type TemplateFn = (subst: SubstFn) => string | undefined;
cin
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 r55 type ConvertFn = (value: any, format?: string) => string;
const map = {
"\\{": "&curlopen;",
"\\}": "&curlclose;",
"&": "&",
"\\:": ":"
};
const rev = {
curlopen: "{",
curlclose: "}",
amp: "&",
colon: ":"
};
function espaceString(s: string) {
if (!s)
return s;
return "'" + s.replace(/('|\\)/g, "\\$1").replace("\n", "\\n") + "'";
}
function encode(s: string) {
if (!s)
return s;
cin
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 r115 return s.replace(/\\{|\\}|&|\\:|\n/g, m => isKeyof(m, map) ? map[m] : m);
cin
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 r55 }
function decode(s: string) {
if (!s)
return s;
cin
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 r115 return s.replace(/&(\w+);/g, (m, $1) => isKeyof($1, rev) ? rev[$1] : m);
cin
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 r55 }
function subst(s: string) {
const i = s.indexOf(":");
let name: string;
cin
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 r115 let pattern: string | undefined;
cin
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 r55 if (i >= 0) {
name = s.substr(0, i);
pattern = s.substr(i + 1);
} else {
name = s;
}
if (pattern)
return [
espaceString(decode(name)),
cin
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 r115 espaceString(decode(pattern))
];
cin
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 r55 else
return [espaceString(decode(name))];
}
function _compile(str: string) {
if (!str)
return () => void 0;
const chunks = encode(str).split("{");
let chunk: string;
const code = ["var result=[];"];
for (let i = 0; i < chunks.length; i++) {
chunk = chunks[i];
if (i === 0) {
if (chunk)
code.push("result.push(" + espaceString(decode(chunk)) +
");");
} else {
const len = chunk.indexOf("}");
if (len < 0)
throw new Error("Unbalanced substitution #" + i);
code.push("result.push(subst(" +
subst(chunk.substr(0, len)).join(",") + "));");
if (chunk.length > len + 1)
code.push("result.push(" +
espaceString(decode(chunk.substr(len + 1))) + ");");
}
}
code.push("return result.join('');");
// the code for this function is generated from the template
// tslint:disable-next-line:function-constructor
return new Function("subst", code.join("\n")) as TemplateFn;
}
const cache: MapOf<TemplateFn> = {};
export function compile(template: string) {
let compiled = cache[template];
if (!compiled) {
compiled = _compile(template);
cache[template] = compiled;
}
return compiled;
}
cin
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 r115 function defaultConverter(value: any, pattern?: string) {
cin
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 r55 if (pattern && pattern.toLocaleLowerCase() === "json") {
cin
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 r115 const seen: any = [];
cin
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 r55 return JSON.stringify(value, (k, v) => {
if (!isPrimitive(v)) {
const id = seen.indexOf(v);
if (id >= 0)
return "@ref-" + id;
else {
seen.push(v);
cin
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 r115 return v.toString() as string;
cin
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 r55 }
} else {
cin
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 r115 return isNull(v) ? "" : v.toString();
cin
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 r55 }
}, 2);
} else if (isNull(value)) {
return "";
} else if (value instanceof Date) {
return value.toISOString();
} else {
cin
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 r115 return value.toString() as string;
cin
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 r55 }
}
export class Formatter {
_converters: ConvertFn[];
constructor(converters?: ConvertFn[]) {
this._converters = converters || [];
this._converters.push(defaultConverter);
}
cin
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 r115 convert(value: any, pattern?: string) {
cin
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 r55 for (const c of this._converters) {
const res = c(value, pattern);
if (!isNull(res))
return res;
}
return "";
}
format(msg: string, ...args: any[]) {
const template = compile(msg);
return template((name, pattern) => {
cin
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 r115 const value = get(name, args);
cin
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 r55 return !isNull(value) ? this.convert(value, pattern) : "";
});
}
compile(msg: string) {
const template = compile(msg);
return (...args: any[]) => {
return template((name, pattern) => {
cin
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 r115 const value = get(name, args);
cin
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 r55 return !isNull(value) ? this.convert(value, pattern) : "";
});
};
}
}
const _default = new Formatter();
export function format(msg: string, ...args: any[]) {
return _default.format(msg, ...args);
}
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 r65
export function convert(value: any, pattern: string) {
return _default.format(value, pattern);
}