benhalverson/sheetjs
1
Fork 0
forked from sheetjs/sheetjs
Code Pull Requests Activity

Base64 TypeScript

Browse Source
This commit is contained in:
Pedro Arantes 2022-02-04 17:57:47 -03:00
parent 55924668a7
commit 3cbe83c855
5 changed files with 143 additions and 45 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
Makefile
View File

@ -19,6 +19,7 @@ ESMJSDEPS=$(shell cat misc/mjs.lst)
ULIB=$(shell echo $(LIB) | tr a-z A-Z)
DEPS=$(sort $(wildcard bits/*.js))
TSBITS=$(patsubst modules/%,bits/%,$(wildcard modules/[0-9][0-9]_*.js))
TARGET=$(LIB).js
FLOWTARGET=$(LIB).flow.js
FLOWAUX=$(patsubst %.js,%.flow.js,$(AUXTARGETS))
@ -53,7 +54,7 @@ bits/01_version.js: package.json
bits/18_cfb.js: node_modules/cfb/xlscfb.flow.js
cp $^ $@
bits/83_numbers.js: modules/83_numbers.js
$(TSBITS): bits/%: modules/%
cp $^ $@

91
bits/04_base64.js
View File

@ -1,44 +1,47 @@
var Base64 = (function make_b64(){
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input/*:string*/)/*:string*/ {
var o = "";
var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
for(var i = 0; i < input.length; ) {
c1 = input.charCodeAt(i++);
e1 = (c1 >> 2);
c2 = input.charCodeAt(i++);
e2 = ((c1 & 3) << 4) | (c2 >> 4);
c3 = input.charCodeAt(i++);
e3 = ((c2 & 15) << 2) | (c3 >> 6);
e4 = (c3 & 63);
if (isNaN(c2)) { e3 = e4 = 64; }
else if (isNaN(c3)) { e4 = 64; }
o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
}
return o;
},
decode: function b64_decode(input/*:string*/)/*:string*/ {
var o = "";
var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
input = input.replace(/[^\w\+\/\=]/g, "");
for(var i = 0; i < input.length;) {
e1 = map.indexOf(input.charAt(i++));
e2 = map.indexOf(input.charAt(i++));
c1 = (e1 << 2) | (e2 >> 4);
o += String.fromCharCode(c1);
e3 = map.indexOf(input.charAt(i++));
c2 = ((e2 & 15) << 4) | (e3 >> 2);
if (e3 !== 64) { o += String.fromCharCode(c2); }
e4 = map.indexOf(input.charAt(i++));
c3 = ((e3 & 3) << 6) | e4;
if (e4 !== 64) { o += String.fromCharCode(c3); }
}
return o;
}
};
})();
var Base64 = function() {
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input) {
var o = "";
var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
for (var i = 0; i < input.length; ) {
c1 = input.charCodeAt(i++);
e1 = c1 >> 2;
c2 = input.charCodeAt(i++);
e2 = (c1 & 3) << 4 | c2 >> 4;
c3 = input.charCodeAt(i++);
e3 = (c2 & 15) << 2 | c3 >> 6;
e4 = c3 & 63;
if (isNaN(c2)) {
e3 = e4 = 64;
} else if (isNaN(c3)) {
e4 = 64;
}
o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
}
return o;
},
decode: function(input) {
var o = "";
var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
input = input.replace(/[^\w\+\/\=]/g, "");
for (var i = 0; i < input.length; ) {
e1 = map.indexOf(input.charAt(i++));
e2 = map.indexOf(input.charAt(i++));
c1 = e1 << 2 | e2 >> 4;
o += String.fromCharCode(c1);
e3 = map.indexOf(input.charAt(i++));
c2 = (e2 & 15) << 4 | e3 >> 2;
if (e3 !== 64) {
o += String.fromCharCode(c2);
}
e4 = map.indexOf(input.charAt(i++));
c3 = (e3 & 3) << 6 | e4;
if (e4 !== 64) {
o += String.fromCharCode(c3);
}
}
return o;
}
};
}();

47
modules/04_base64.js Normal file
View File

@ -0,0 +1,47 @@
var Base64 = function() {
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input) {
var o = "";
var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
for (var i = 0; i < input.length; ) {
c1 = input.charCodeAt(i++);
e1 = c1 >> 2;
c2 = input.charCodeAt(i++);
e2 = (c1 & 3) << 4 | c2 >> 4;
c3 = input.charCodeAt(i++);
e3 = (c2 & 15) << 2 | c3 >> 6;
e4 = c3 & 63;
if (isNaN(c2)) {
e3 = e4 = 64;
} else if (isNaN(c3)) {
e4 = 64;
}
o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
}
return o;
},
decode: function(input) {
var o = "";
var c1 = 0, c2 = 0, c3 = 0, e1 = 0, e2 = 0, e3 = 0, e4 = 0;
input = input.replace(/[^\w\+\/\=]/g, "");
for (var i = 0; i < input.length; ) {
e1 = map.indexOf(input.charAt(i++));
e2 = map.indexOf(input.charAt(i++));
c1 = e1 << 2 | e2 >> 4;
o += String.fromCharCode(c1);
e3 = map.indexOf(input.charAt(i++));
c2 = (e2 & 15) << 4 | e3 >> 2;
if (e3 !== 64) {
o += String.fromCharCode(c2);
}
e4 = map.indexOf(input.charAt(i++));
c3 = (e3 & 3) << 6 | e4;
if (e4 !== 64) {
o += String.fromCharCode(c3);
}
}
return o;
}
};
}();

44
modules/04_base64.ts Normal file
View File

@ -0,0 +1,44 @@
var Base64 = (() => {
var map = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
return {
encode: function(input: string): string {
var o = "";
var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
for(var i = 0; i < input.length; ) {
c1 = input.charCodeAt(i++);
e1 = (c1 >> 2);
c2 = input.charCodeAt(i++);
e2 = ((c1 & 3) << 4) | (c2 >> 4);
c3 = input.charCodeAt(i++);
e3 = ((c2 & 15) << 2) | (c3 >> 6);
e4 = (c3 & 63);
if (isNaN(c2)) { e3 = e4 = 64; }
else if (isNaN(c3)) { e4 = 64; }
o += map.charAt(e1) + map.charAt(e2) + map.charAt(e3) + map.charAt(e4);
}
return o;
},
decode: function(input: string): string {
var o = "";
var c1=0, c2=0, c3=0, e1=0, e2=0, e3=0, e4=0;
input = input.replace(/[^\w\+\/\=]/g, "");
for(var i = 0; i < input.length;) {
e1 = map.indexOf(input.charAt(i++));
e2 = map.indexOf(input.charAt(i++));
c1 = (e1 << 2) | (e2 >> 4);
o += String.fromCharCode(c1);
e3 = map.indexOf(input.charAt(i++));
c2 = ((e2 & 15) << 4) | (e3 >> 2);
if (e3 !== 64) { o += String.fromCharCode(c2); }
e4 = map.indexOf(input.charAt(i++));
c3 = ((e3 & 3) << 6) | e4;
if (e4 !== 64) { o += String.fromCharCode(c3); }
}
return o;
}
};
})();

3
modules/Makefile
View File

@ -5,6 +5,9 @@ ENTRIES=$(subst .ts,.js,$(TSFILES))
.PHONY: all
all: $(ENTRIES)
04_base64.js: 04_base64.ts $(LIBFILES)
npx esbuild $< --outfile=$@ --platform=browser --target=es5
83_numbers.js: 83_numbers.ts $(LIBFILES)
npx esbuild $< --bundle --outfile=$@ --platform=browser --format=iife --global-name=NUMBERS --target=es5