Make a SJW package out of UnitJS

CHANGELOG.md

@@ -0,0 +1,5 @@
+# Revision history for UnitJS
+
+## 0.1.0 -- 2020-05-17
+
+* Release UnitJS as a [SJW](https://git.marvid.fr/Tissevert/SJW) package still useable as a standalone script.

Makefile

@@ -1,6 +1,6 @@
 BUILD_DIR=dist
 TARGET=$(BUILD_DIR)/unit.js
-SRC=$(wildcard *.js)
+SRC=$(wildcard src/UnitJS/*.js)
 TEMPLATE=unit.js.tpl
 
 all: $(TARGET)

README.md

@@ -0,0 +1,43 @@
+# UnitJS
+
+UnitJS is a tiny Javascript framework to write web applications. It provides four essential modules to deal with asynchronous functions (technically, it's a monad obtained by currifying the CPS functions of Javascript like `setTimeout`), value caching, DOM manipulation and basic functional needs like composition or object projections.
+
+## Usage
+
+### With [SJW](https://git.marvid.fr/Tissevert/SJW)
+
+UnitJS comes as a SJW package. You can install it by copying the `src/` directory of this repository to your package database by issuing the following command from the current directory :
+
+```
+$ cp -r src/ ~/.sjw/unitJS
+```
+
+Then, using unitJS in your projects is as simple as writing :
+
+```
+import * as Async from UnitJS.Async;
+```
+
+in any module if you want to use the `Async` module for instance and compile your code using the `--include` option of `sjw` with package `unitJS` :
+
+```
+$ sjw -I unitJS your/code/src -o your/code/main.js
+```
+
+Note that all modules have their path prefixed by a common `UnitJS` component and that SJW will only include the modules actually used in your code, not all of UnitJS.
+
+### As a standalone JS script
+
+If you don't want to or can't use SJW, it's still possible to use UnitJS by generating a single script that can then be loaded from your web page like this :
+
+```
+<script src="/path/to/unit.js"></script>
+```
+
+The file `unit.js` can be easily generated with `make`, which actually just calls the `unit.js.tpl` script. Note that you can still generate custom «partial» versions of `unit.js` if you don't use all of it by overriding the `SRC` variable of the `Makefile` like so :
+
+```
+make SRC="src/UnitJS/Dom.js src/UnitJS/Cache.js"
+```
+
+or by manually calling `./unit.js.tpl` with the files you want, like the `Makefile` does.

async.js

@@ -1,131 +0,0 @@
-function Async() {
-	return {
-		apply: apply,
-		bind: bind,
-		fail: fail,
-		http: http,
-		map: map,
-		parallel: parallel,
-		run: run,
-		sequence: sequence,
-		wait: wait,
-		wrap: wrap
-	};
-
-	function apply(f, x) {
-		return function(g) {
-			g(f(x));
-		};
-	}
-
-	function bind() {
-		var m, steps, i;
-		if(arguments.length < 1) {
-			return wrap();
-		}
-		m = arguments[0];
-		steps = arguments;
-		i = 1;
-		return function(f) {
-			var step = function(x) {
-				if(i < steps.length) {
-					steps[i++](x)(step);
-				} else {
-					return f(x);
-				}
-			}
-			m(step);
-		};
-	}
-
-	function fail(message) {
-		return function(f) {
-			console.log(message);
-		}
-	}
-
-	function map(mapper) {
-		return function(x) {
-			return function(f) {
-				f(mapper(x));
-			};
-		};
-	}
-
-	function parallel() {
-		var threads = arguments;
-		var pending = threads.length;
-		var results = [];
-		var returned = [];
-		return function(f) {
-			var useResult = function(i) {
-				return function(x) {
-					if(!returned[i]) {
-						results[i] = x;
-						returned[i] = true;
-						pending--;
-						if(pending < 1) {
-							f(results);
-						}
-					}
-				};
-			};
-			for(var i = 0; i < threads.length; i++) {
-				threads[i](useResult(i));
-			}
-		};
-	}
-
-	function run() {
-		var m;
-		if(arguments.length == 1) {
-			m = arguments[0];
-		} else {
-			m = sequence.apply(null, arguments);
-		}
-		m(function() {});
-	}
-
-	function sequence() {
-		var steps = arguments;
-		var i = 0;
-		return function(f) {
-			var step = function(x) {
-				if(i < steps.length) {
-					steps[i++](step);
-				} else {
-					f(x);
-				}
-			}
-			step();
-		};
-	}
-
-	function wait(delay) {
-		return function(f) {
-			setTimeout(f, delay);
-		};
-	}
-
-	function wrap(x) {
-		return function(f) {
-			f(x);
-		};
-	}
-
-	function http(query) {
-		return function(f) {
-			var xhr = new XMLHttpRequest();
-			xhr.addEventListener('load', function() {
-				f(this);
-			});
-			xhr.open(query.method, query.url);
-			if(query.method == 'POST') {
-				xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
-			}
-			xhr.send(query.body);
-
-		};
-	}
-
-}

cache.js

@@ -1,54 +0,0 @@
-function Cache() {
-	function Cache(loader) {
-		this.loader = loader;
-		this.loaded = {};
-		this.loading = {};
-	}
-
-	Cache.prototype.get = function(key) {
-		return function(f) {
-			if(this.loaded[key] != undefined) {
-				f(this.loaded[key]);
-			} else {
-				this.startLoading(key);
-				this.loading[key].push(f);
-				this.loader(key)(this.store(key));
-			}
-		}.bind(this);
-	};
-
-	Cache.prototype.warmUp = function(key) {
-		if(this.loaded[key] == undefined) {
-			this.startLoading(key);
-			this.loader(key)(this.store(key));
-		}
-	};
-
-	Cache.prototype.startLoading = function(key) {
-		if(this.loading[key] == undefined) {
-			this.loading[key] = [];
-		}
-	};
-
-	Cache.prototype.store = function(key) {
-		return function(value) {
-			this.loaded[key] = value;
-			for(var i = 0; i < this.loading[key].length; i++) {
-				this.loading[key][i](value);
-			}
-			this.loading[key] = null;
-		}.bind(this);
-	};
-
-	return {
-		make: make
-	};
-
-	function make(loader) {
-		var cache = new Cache(loader);
-		return {
-			get: cache.get.bind(cache),
-			warmUp: cache.warmUp.bind(cache)
-		};
-	}
-}

dom.js

@@ -1,39 +0,0 @@
-function Dom() {
-	return {
-		clear: clear,
-		make: make
-	}
-
-	function clear(elem) {
-		while(elem.firstChild) {
-			elem.removeChild(elem.firstChild);
-		}
-	}
-
-	function make(tag, properties, children) {
-		var e = document.createElement(tag);
-		properties = properties || {};
-		children = children || [];
-		for(key in properties) {
-			var value = properties[key];
-			switch(key) {
-				case "class":
-					e.className = Array.isArray(value) ? value.join(' ') : value;
-					break;;
-				case "maxlength":
-					e.setAttribute("maxlength", value);
-					break;
-				case "onClick":
-					e.addEventListener("click", value);
-					break;;
-				default:
-					e[key] = value;
-			}
-		}
-		for(var i = 0; i < children.length; i++) {
-			e.appendChild(children[i]);
-		}
-		return e;
-	}
-
-}

fun.js

@@ -1,74 +0,0 @@
-function Fun() {
-	return {
-		compare: compare,
-		compose: compose,
-		defined: defined,
-		id: id,
-		insert: insert,
-		map: map,
-		mapFilter: mapFilter,
-		of: of,
-		proj: proj
-	};
-
-	function compare(on) {
-		on = on || id;
-		return function(a, b) {
-			var va = on(a), vb = on(b);
-			return va < vb ? -1 : (va > vb ? 1 : 0)
-		};
-	}
-
-	function compose(f, g) {
-		return function() {
-			return f(g.apply(null, arguments));
-		};
-	}
-
-	function defined(x) {
-		return x != undefined;
-	}
-
-	function id(x) {
-		return x;
-	}
-
-	function insert(obj, t, comparer, min, max) {
-		min = defined(min) ? min : 0;
-		max = defined(max) ? max : t.length;
-		comparer = comparer || compare();
-		if(max - min < 1) {
-			return min;
-		}
-		var avg = Math.floor((max + min) / 2);
-		if (compare(obj, t[avg]) < 0) {
-			return insert(obj, t, compare, min, avg);
-		} else {
-			return insert(obj, t, compare, avg+1, max);
-		}
-	}
-
-	function map(mapper, f) {
-		return function() {
-			var args = Array.prototype.map.call(arguments, mapper);
-			return f.apply(null, args);
-		}
-	}
-
-	function mapFilter(mapper, predicate) {
-		return function(array) {
-			return array.reduce(function(accumulator, elem) {
-				var v = mapper(elem);
-				return predicate(v) ? accumulator.concat(v) : accumulator;
-			}, []);
-		};
-	}
-
-	function of(o) {
-		return function(key) {return o[key];};
-	}
-
-	function proj(key) {
-		return function(o) {return o[key];};
-	}
-}

src/UnitJS/Async.js

@@ -0,0 +1,128 @@
+return {
+	apply: apply,
+	bind: bind,
+	fail: fail,
+	http: http,
+	map: map,
+	parallel: parallel,
+	run: run,
+	sequence: sequence,
+	wait: wait,
+	wrap: wrap
+};
+
+function apply(f, x) {
+	return function(g) {
+		g(f(x));
+	};
+}
+
+function bind() {
+	var m, steps, i;
+	if(arguments.length < 1) {
+		return wrap();
+	}
+	m = arguments[0];
+	steps = arguments;
+	i = 1;
+	return function(f) {
+		var step = function(x) {
+			if(i < steps.length) {
+				steps[i++](x)(step);
+			} else {
+				return f(x);
+			}
+		}
+		m(step);
+	};
+}
+
+function fail(message) {
+	return function(f) {
+		console.log(message);
+	}
+}
+
+function map(mapper) {
+	return function(x) {
+		return function(f) {
+			f(mapper(x));
+		};
+	};
+}
+
+function parallel() {
+	var threads = arguments;
+	var pending = threads.length;
+	var results = [];
+	var returned = [];
+	return function(f) {
+		var useResult = function(i) {
+			return function(x) {
+				if(!returned[i]) {
+					results[i] = x;
+					returned[i] = true;
+					pending--;
+					if(pending < 1) {
+						f(results);
+					}
+				}
+			};
+		};
+		for(var i = 0; i < threads.length; i++) {
+			threads[i](useResult(i));
+		}
+	};
+}
+
+function run() {
+	var m;
+	if(arguments.length == 1) {
+		m = arguments[0];
+	} else {
+		m = sequence.apply(null, arguments);
+	}
+	m(function() {});
+}
+
+function sequence() {
+	var steps = arguments;
+	var i = 0;
+	return function(f) {
+		var step = function(x) {
+			if(i < steps.length) {
+				steps[i++](step);
+			} else {
+				f(x);
+			}
+		}
+		step();
+	};
+}
+
+function wait(delay) {
+	return function(f) {
+		setTimeout(f, delay);
+	};
+}
+
+function wrap(x) {
+	return function(f) {
+		f(x);
+	};
+}
+
+function http(query) {
+	return function(f) {
+		var xhr = new XMLHttpRequest();
+		xhr.addEventListener('load', function() {
+			f(this);
+		});
+		xhr.open(query.method, query.url);
+		if(query.method == 'POST') {
+			xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
+		}
+		xhr.send(query.body);
+
+	};
+}

src/UnitJS/Cache.js

@@ -0,0 +1,52 @@
+function Cache(loader) {
+	this.loader = loader;
+	this.loaded = {};
+	this.loading = {};
+}
+
+Cache.prototype.get = function(key) {
+	return function(f) {
+		if(this.loaded[key] != undefined) {
+			f(this.loaded[key]);
+		} else {
+			this.startLoading(key);
+			this.loading[key].push(f);
+			this.loader(key)(this.store(key));
+		}
+	}.bind(this);
+};
+
+Cache.prototype.warmUp = function(key) {
+	if(this.loaded[key] == undefined) {
+		this.startLoading(key);
+		this.loader(key)(this.store(key));
+	}
+};
+
+Cache.prototype.startLoading = function(key) {
+	if(this.loading[key] == undefined) {
+		this.loading[key] = [];
+	}
+};
+
+Cache.prototype.store = function(key) {
+	return function(value) {
+		this.loaded[key] = value;
+		for(var i = 0; i < this.loading[key].length; i++) {
+			this.loading[key][i](value);
+		}
+		this.loading[key] = null;
+	}.bind(this);
+};
+
+return {
+	make: make
+};
+
+function make(loader) {
+	var cache = new Cache(loader);
+	return {
+		get: cache.get.bind(cache),
+		warmUp: cache.warmUp.bind(cache)
+	};
+}

src/UnitJS/Dom.js

@@ -0,0 +1,36 @@
+return {
+	clear: clear,
+	make: make
+}
+
+function clear(elem) {
+	while(elem.firstChild) {
+		elem.removeChild(elem.firstChild);
+	}
+}
+
+function make(tag, properties, children) {
+	var e = document.createElement(tag);
+	properties = properties || {};
+	children = children || [];
+	for(key in properties) {
+		var value = properties[key];
+		switch(key) {
+			case "class":
+				e.className = Array.isArray(value) ? value.join(' ') : value;
+				break;;
+			case "maxlength":
+				e.setAttribute("maxlength", value);
+				break;
+			case "onClick":
+				e.addEventListener("click", value);
+				break;;
+			default:
+				e[key] = value;
+		}
+	}
+	for(var i = 0; i < children.length; i++) {
+		e.appendChild(children[i]);
+	}
+	return e;
+}

src/UnitJS/Fun.js

@@ -0,0 +1,72 @@
+return {
+	compare: compare,
+	compose: compose,
+	defined: defined,
+	id: id,
+	insert: insert,
+	map: map,
+	mapFilter: mapFilter,
+	of: of,
+	proj: proj
+};
+
+function compare(on) {
+	on = on || id;
+	return function(a, b) {
+		var va = on(a), vb = on(b);
+		return va < vb ? -1 : (va > vb ? 1 : 0)
+	};
+}
+
+function compose(f, g) {
+	return function() {
+		return f(g.apply(null, arguments));
+	};
+}
+
+function defined(x) {
+	return x != undefined;
+}
+
+function id(x) {
+	return x;
+}
+
+function insert(obj, t, comparer, min, max) {
+	min = defined(min) ? min : 0;
+	max = defined(max) ? max : t.length;
+	comparer = comparer || compare();
+	if(max - min < 1) {
+		return min;
+	}
+	var avg = Math.floor((max + min) / 2);
+	if (compare(obj, t[avg]) < 0) {
+		return insert(obj, t, compare, min, avg);
+	} else {
+		return insert(obj, t, compare, avg+1, max);
+	}
+}
+
+function map(mapper, f) {
+	return function() {
+		var args = Array.prototype.map.call(arguments, mapper);
+		return f.apply(null, args);
+	}
+}
+
+function mapFilter(mapper, predicate) {
+	return function(array) {
+		return array.reduce(function(accumulator, elem) {
+			var v = mapper(elem);
+			return predicate(v) ? accumulator.concat(v) : accumulator;
+		}, []);
+	};
+}
+
+function of(o) {
+	return function(key) {return o[key];};
+}
+
+function proj(key) {
+	return function(o) {return o[key];};
+}

unit.js.tpl

@@ -2,15 +2,36 @@
 
 indent()
 {
-	local tabs="$(printf '\t%.0s' `seq 1 $1`)"
-	sed "s|^|${tabs}|"
+	sed "s|^\(.\)|\t\1|"
+}
+
+moduleName()
+{
+	local fileName="${1##*/}"
+	printf "${fileName%.*}"
+}
+
+MODULES=""
+for file in "${@}"
+do
+	MODULES="${MODULES}:$(moduleName "${file}")"
+done
+MODULES="${MODULES#:}"
+
+includeModule()
+{
+cat <<EOF
+function $(moduleName "${1}")() {
+$(cat "${1}" | indent)
+}
+EOF
 }
 
 cat <<EOF
 var unitJS = (function() {
 	return {
-$(echo "${@}" | sed -e 's| |,\n|g' -e 's|\([^.\n]\+\)\.js|\u\1: \u\1|g' | indent 2)
+$(printf "${MODULES}" | sed -e 's|:|,\n|g' -e 's|[^,\n]\+|&: &|g' | indent | indent)
 	};
-$(cat "${@}" | indent 1)
+$(for file in "${@}"; do includeModule "${file}"; done | indent)
 })();
 EOF