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implab » implabjs-core
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Clone from http://hg.code.sf.net/p/implabjs/core

ported string format traits to typescript
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r55:4eaaaa5c1cf3 di-typescript
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@@ -0,0 +1,8
1 import * as module from "module";
2 import { TraceSource } from "../log/TraceSource";
3
4 const logger = TraceSource.get(module.id);
5
6 logger.warn("The module is deprecated, use StringFormat.compile() method directly");
7
8 export { compile } from "./StringFormat";
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@@ -0,0 +1,47
1 import { format as dojoFormatNumber } from "dojo/number";
2 import { format as dojoFormatDate } from "dojo/date/locale";
3 import { Formatter } from "./StringFormat";
4
5 import { isNumber } from "../safe";
6
7 interface NumberFormatOptions {
8 round?: number;
9 pattern?: string;
10 }
11
12 function convertNumber(value: any, pattern: string) {
13 if (isNumber(value)) {
14 const nopt = {} as NumberFormatOptions;
15 if (pattern.indexOf("!") === 0) {
16 nopt.round = -1;
17 pattern = pattern.substr(1);
18 }
19 nopt.pattern = pattern;
20
21 return dojoFormatNumber(value, nopt);
22 }
23 }
24
25 function convertDate(value: any, pattern: string) {
26 if (value instanceof Date) {
27 const m = pattern.match(/^(\w+)-(\w+)$/);
28 if (m)
29 return dojoFormatDate(value, {
30 selector: m[2],
31 formatLength: m[1]
32 });
33 else if (pattern === "iso")
34 return value.toISOString();
35 else
36 return dojoFormatDate(value, {
37 selector: "date",
38 datePattern: pattern
39 });
40 }
41 }
42
43 const _formatter = new Formatter([convertNumber, convertDate]);
44
45 export = function format(msg: string, ...args: any[]) {
46 return _formatter.format.apply(msg, ...args);
47 };
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@@ -0,0 +1,173
1 import { isPrimitive, isNull, each } from "../safe";
2 import { MapOf } from "../interfaces";
3
4 type SubstFn = (name: string, format?: string) => string;
5 type TemplateFn = (subst: SubstFn) => string;
6 type ConvertFn = (value: any, format?: string) => string;
7
8 const map = {
9 "\\{": "&curlopen;",
10 "\\}": "&curlclose;",
11 "&": "&",
12 "\\:": ":"
13 };
14
15 const rev = {
16 curlopen: "{",
17 curlclose: "}",
18 amp: "&",
19 colon: ":"
20 };
21
22 function espaceString(s: string) {
23 if (!s)
24 return s;
25 return "'" + s.replace(/('|\\)/g, "\\$1").replace("\n", "\\n") + "'";
26 }
27
28 function encode(s: string) {
29 if (!s)
30 return s;
31 return s.replace(/\\{|\\}|&|\\:|\n/g, m => map[m] || m);
32 }
33
34 function decode(s: string) {
35 if (!s)
36 return s;
37 return s.replace(/&(\w+);/g, (m, $1) => rev[$1] || m);
38 }
39
40 function subst(s: string) {
41 const i = s.indexOf(":");
42 let name: string;
43 let pattern: string;
44 if (i >= 0) {
45 name = s.substr(0, i);
46 pattern = s.substr(i + 1);
47 } else {
48 name = s;
49 }
50
51 if (pattern)
52 return [
53 espaceString(decode(name)),
54 espaceString(decode(pattern))];
55 else
56 return [espaceString(decode(name))];
57 }
58
59 function _compile(str: string) {
60 if (!str)
61 return () => void 0;
62
63 const chunks = encode(str).split("{");
64 let chunk: string;
65
66 const code = ["var result=[];"];
67
68 for (let i = 0; i < chunks.length; i++) {
69 chunk = chunks[i];
70
71 if (i === 0) {
72 if (chunk)
73 code.push("result.push(" + espaceString(decode(chunk)) +
74 ");");
75 } else {
76 const len = chunk.indexOf("}");
77 if (len < 0)
78 throw new Error("Unbalanced substitution #" + i);
79
80 code.push("result.push(subst(" +
81 subst(chunk.substr(0, len)).join(",") + "));");
82 if (chunk.length > len + 1)
83 code.push("result.push(" +
84 espaceString(decode(chunk.substr(len + 1))) + ");");
85 }
86 }
87
88 code.push("return result.join('');");
89
90 // the code for this function is generated from the template
91 // tslint:disable-next-line:function-constructor
92 return new Function("subst", code.join("\n")) as TemplateFn;
93 }
94
95 const cache: MapOf<TemplateFn> = {};
96
97 export function compile(template: string) {
98 let compiled = cache[template];
99 if (!compiled) {
100 compiled = _compile(template);
101 cache[template] = compiled;
102 }
103 return compiled;
104 }
105
106 function defaultConverter(value: any, pattern: string) {
107 if (pattern && pattern.toLocaleLowerCase() === "json") {
108 const seen = [];
109 return JSON.stringify(value, (k, v) => {
110 if (!isPrimitive(v)) {
111 const id = seen.indexOf(v);
112 if (id >= 0)
113 return "@ref-" + id;
114 else {
115 seen.push(v);
116 return v;
117 }
118 } else {
119 return v;
120 }
121 }, 2);
122 } else if (isNull(value)) {
123 return "";
124 } else if (value instanceof Date) {
125 return value.toISOString();
126 } else {
127 return pattern ? value.toString(pattern) : value.toString();
128 }
129 }
130
131 export class Formatter {
132 _converters: ConvertFn[];
133
134 constructor(converters?: ConvertFn[]) {
135 this._converters = converters || [];
136 this._converters.push(defaultConverter);
137 }
138
139 convert(value: any, pattern: string) {
140 for (const c of this._converters) {
141 const res = c(value, pattern);
142 if (!isNull(res))
143 return res;
144 }
145 return "";
146 }
147
148 format(msg: string, ...args: any[]) {
149 const template = compile(msg);
150
151 return template((name, pattern) => {
152 const value = args[name];
153 return !isNull(value) ? this.convert(value, pattern) : "";
154 });
155
156 }
157
158 compile(msg: string) {
159 const template = compile(msg);
160 return (...args: any[]) => {
161 return template((name, pattern) => {
162 const value = args[name];
163 return !isNull(value) ? this.convert(value, pattern) : "";
164 });
165 };
166 }
167 }
168
169 const _default = new Formatter();
170
171 export function format(msg: string, ...args: any[]) {
172 return _default.format(msg, ...args);
173 }
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@@ -2,6 +2,10 export type Constructor<T = {}> = new (.
2 2
3 3 export type Factory<T = {}> = (...args: any[]) => T;
4 4
5 export interface MapOf<T> {
6 [key: string]: T;
7 }
8
5 9 export interface IDestroyable {
6 10 destroy();
7 11 }
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@@ -1,6 +1,6
1 1 import { Observable } from "../Observable";
2 2 import { Registry } from "./Registry";
3 import { format } from "../text/FormatString";
3 import { format } from "../text/StringFormat";
4 4
5 5 export const DebugLevel = 400;
6 6
@@ -38,7 +38,7 export class TraceSource {
38 38 }
39 39
40 40 protected emit(level: number, arg: any) {
41 this._notifyNext({ source: this, level, arg});
41 this._notifyNext({ source: this, level, arg });
42 42 }
43 43
44 44 isDebugEnabled() {
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