├── .gitignore
├── LICENSE.LGPL
├── LICENSE.MIT
├── Makefile
├── README.md
├── examples
├── assign.html
├── compiler.html
├── conditional.html
├── conditions.html
├── creators.html
├── dollar.html
├── emptystring.html
├── euler.html
├── exprslider.html
├── filters.html
├── functions.html
├── gaetano_g.html
├── genTerm.html
├── import.html
├── jcbench.html
├── jessiecode.html
├── jison.html
├── log.html
├── map.html
├── merge_props.html
├── numbers.html
├── scopechain.html
├── test.html
└── utf8.html
├── package.json
├── src
├── ca.js
├── ca_amd.js
├── grammar.jison
├── interpreter.js
└── interpreter_amd.js
└── test
├── jsTestDriver.conf
├── testArithmetic.js
├── testBuiltin.js
├── testControl.js
└── testGeneric.js
/.gitignore:
--------------------------------------------------------------------------------
1 | bin
2 | node_modules
3 | .idea/
4 |
--------------------------------------------------------------------------------
/LICENSE.LGPL:
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1 | GNU LESSER GENERAL PUBLIC LICENSE
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1 | Copyright (C) 2008-2019
2 |
3 | Matthias Ehmann
4 | Michael Gerhaeuser
5 | Carsten Miller
6 | Bianca Valentin
7 | Alfred Wassermann
8 | Peter Wilfahrt
9 |
10 | Permission is hereby granted, free of charge, to any person obtaining a copy
11 | of this software and associated documentation files (the "Software"), to deal
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26 | SOFTWARE.
27 |
--------------------------------------------------------------------------------
/Makefile:
--------------------------------------------------------------------------------
1 | .PHONY: core deploy test test-server clean
2 |
3 | # directories
4 | OUTPUT=bin
5 | TMP=tmp
6 | BIN=./node_modules/.bin
7 | JSXGRAPH=../JSXGraph
8 |
9 | # build tools
10 | # REQUIREJS=$(BIN)/r.js
11 | # UGLIFYJS=$(BIN)/uglifyjs
12 | MINIFYER=./node_modules/terser/bin/terser
13 | LINT=$(BIN)/jslint
14 | ESLINT=./node_modules/eslint/bin/eslint.js
15 | HINT=$(BIN)/jshint
16 | JSTESTDRIVER=java -jar ./node_modules/jstestdriver/lib/jstestdriver.jar
17 | JISON=$(BIN)/jison
18 |
19 | # general tools
20 | CP=cp
21 | CAT=cat
22 | MKDIR=mkdir
23 | RM=rm
24 | CD=cd
25 | ZIP=zip
26 | SED=sed
27 |
28 | # flags
29 | MKDIRFLAGS=-p
30 | RMFLAGS=-rf
31 | JSDOC2FLAGS=-v -p -t=$(JSDOC2TPL) -d=$(TMP)/docs
32 | ZIPFLAGS=-r
33 | JSTESTPORT=4224
34 | JSTESTSERVER=localhost:4224
35 | JSTESTFLAGS=--reset --captureConsole --tests all
36 |
37 | # filelists - required for docs, linters, and to build the readers
38 | GRAMMAR=src/grammar.jison
39 | INTERPRETER=src/interpreter.js
40 |
41 | # rules
42 | all: core deploy
43 |
44 | deploy: core
45 | $(CP) $(OUTPUT)/jessiecode.js ../jsxgraph/src/parser/jessiecode.js
46 |
47 | core: parser.js $(INTERPRETER)
48 | $(SED) -e '/#include "parser\.js"/{r '"$(OUTPUT)"'/parser.js' -e 'd}' $(INTERPRETER) > $(OUTPUT)/jessiecode.js
49 | $(SED) -i -e 's/"use strict"//' $(OUTPUT)/jessiecode.js
50 | # Remove trailing whitespace:
51 | $(SED) -i -e 's/[[:space:]]$$//' $(OUTPUT)/jessiecode.js
52 | $(MINIFYER) $(OUTPUT)/jessiecode.js -c -m -o $(OUTPUT)/jessiecode.min.js
53 |
54 | parser.js: $(GRAMMAR)
55 | $(MKDIR) $(MKDIRFLAGS) $(OUTPUT)
56 | $(JISON) $^ -o $(OUTPUT)/parser.js -m js
57 | $(SED) -i 's/var parser =/\/**\n * @class\n * @ignore\n *\/\nvar parser =/g' $(OUTPUT)/parser.js
58 | $(SED) -i 's/^performAction:/\/**\n * @class\n * @ignore\n *\/\nperformAction:/g' $(OUTPUT)/parser.js
59 | $(SED) -i 's/^parse:/\/**\n * @class\n * @ignore\n *\/\nparse:/g' $(OUTPUT)/parser.js
60 | $(SED) -i 's/^function Parser/\/**\n * @class\n * @ignore\n *\/\nfunction Parser/g' $(OUTPUT)/parser.js
61 |
62 | test-server:
63 | $(JSTESTDRIVER) --port $(JSTESTPORT)
64 |
65 | test: jsxgraph
66 | $(JSTESTDRIVER) $(JSTESTSERVER) $(JSTESTFLAGS) --basePath ./ --config test/jsTestDriver.conf
67 |
68 | jsxgraph: deploy
69 | $(CD) ../JSXGraph; make OUTPUT=../JessieCode/bin core-min; git checkout -- src/parser/jessiecode.js
70 |
71 | clean:
72 | rm -f bin/*
73 |
--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | JessieCode - A script language for JSXGraph
2 | ===========================================
3 |
4 | (c) 2011-2021
5 | Michael Gerhäuser, michael.gerhaeuser@gmail.com
6 | Alfred Wassermann, alfred.wassermann@uni-bayreuth.de
7 |
8 |
9 | About
10 | -----
11 |
12 | JessieCode is a scripting language designed to provide a interface to JSXGraph. It is
13 | similar to JavaScript, but prevents access to the DOM. Hence, it can be used in community
14 | driven web sites which want to use JSXGraph to display interactive math graphics.
15 |
16 | JSXGraph (https://jsxgraph.org) is required to use JessieCode.
17 |
18 |
19 | Compile
20 | -------
21 |
22 | Required npm tools:
23 |
24 | - Jison
25 | - uglify-js
26 | - jshint, jslint (optional)
27 |
28 | Use `make` to compile the .bnf file into a javascript parser and to concatenate
29 | the parser and interpreter into a single .js file, see `Makefile`.
30 |
31 | License
32 | -------
33 |
34 | JessieCode is free software dual licensed under the GNU LGPL or MIT License.
35 |
36 | You can redistribute it and/or modify it under the terms of the
37 |
38 | * GNU Lesser General Public License as published by
39 | the Free Software Foundation, either version 3 of the License, or
40 | (at your option) any later version
41 | OR
42 | * MIT License: https://github.com/jsxgraph/jsxgraph/blob/master/LICENSE.MIT
43 |
44 | JessieCode is distributed in the hope that it will be useful,
45 | but WITHOUT ANY WARRANTY; without even the implied warranty of
46 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
47 | GNU Lesser General Public License for more details.
48 |
49 | You should have received a copy of the GNU Lesser General Public License and
50 | the MIT License along with JessieCode. If not, see
51 | and .
52 |
53 | # JessieCode language reference
54 |
55 | ## Datatypes
56 |
57 | - **Boolean**, *true* or *false* (case insensitive, *tRuE* is a valid boolean
58 | constant).
59 |
60 | - **Strings** are defined using single quote marks. Quote marks inside a string
61 | have to be escaped with a backslash.
62 |
63 | - **Number**, corresponds to the JavaScript *number* datatype.
64 |
65 | - **Objects**, can be created only via object literal notation **\<\< \>\>** and
66 | the predefined element functions (see below). To access properties and
67 | methods the operator is used. Example:
68 |
69 | ```js
70 | obj = <<
71 | property: 'string',
72 | prop: 42,
73 | method: function (x) {
74 | return x*x;
75 | }
76 | >>;
77 | sixteen = obj.method(4);
78 | ```
79 |
80 | - **Functions** are declared with the *function* operator
81 |
82 | ```js
83 | f = function (a, b, c) {
84 | return a+b+c;
85 | };
86 | ```
87 |
88 | ## Comments
89 |
90 | Only one line comments with // being the first non-whitespace characters are
91 | supported right now.
92 |
93 | ## Operators
94 |
95 | ### Logical operators
96 |
97 | | Operator | Description |
98 | |:---------|:------------|
99 | | \|\| | OR |
100 | | && | AND |
101 | | ! | NOT |
102 |
103 | ### Arithmetic operators
104 |
105 | | Operator | Description |
106 | |:---------|:------------------------------|
107 | | \+ | Addition |
108 | | \- | Subtraction or unary negation |
109 | | \* | Multiplication |
110 | | / | Division |
111 | | % | Modulus |
112 | | ^ | Exponentiation |
113 |
114 | ### Assignment operators
115 |
116 | | Operator | Description |
117 | |:---------|:------------|
118 | | = | Assignment |
119 |
120 | ### Comparison operators
121 |
122 | | Operator | Description |
123 | |:---------|:--------------------------------------------------------------|
124 | | == | Equals |
125 | | <= | Lesser or equal |
126 | | \>= | Greater or equal |
127 | | \< | Lesser |
128 | | \> | Greater |
129 | | != | Not equal |
130 | | \~= | Approximately equal, can be used to compare two float values. |
131 |
132 | ### Conditional operator
133 |
134 | | Operator | Description |
135 | |:---------|:------------|
136 | | bool ? expr1 : expr2 | expr1 if bool is true, expr2 otherwise |
137 |
138 | ### String operators
139 |
140 | | Operator | Description |
141 | |:---------|:---------------------|
142 | | \+ | String concatenation |
143 |
144 | ### Member operators
145 |
146 | | Operator | Description |
147 | |:---------|:--------------------------------------------|
148 | | . | Access the object\'s properties and methods |
149 |
150 | ## Control structures
151 |
152 | The control structures are exactly the same as in JavaScript.
153 |
154 | ### If
155 |
156 | ```js
157 | if (
159 | } else if () {
160 |
161 | } else {
162 |
163 | }
164 | ```
165 |
166 | ### While loop
167 |
168 | ```js
169 | while () {
170 |
171 | }
172 | ```
173 |
174 | ### Do loop
175 |
176 | ```js
177 | do {
178 |
179 | } while ();
180 | ```
181 |
182 | ### For loop
183 |
184 | ```js
185 | for (; ; ) {
186 |
187 | }
188 | ```
189 |
190 | ## Predefined constants
191 |
192 | | Name | Description |
193 | |:---------|:-------------------------------------------------------|
194 | | \$board | Reference to the currently accessed board. |
195 | | LN2 | Natural logarithm of 2 |
196 | | LN10 | Natural logarithm of 10 |
197 | | LOG2E | Base 2 logarithm of EULER |
198 | | LOG10E | Base 10 logarithm of EULER |
199 | | PI | Ratio of the circumference of a circle to its diameter |
200 | | EULER | Euler\'s number e = 2.718281828459045 |
201 | | SQRT1\_2 | Square root of 1/2 |
202 | | SQRT2 | Square root of 2 |
203 |
204 | ## Predefined functions
205 |
206 | ### Math functions
207 |
208 | Supported are all functions from the JavaScript `Math` object, like `sin`, `cos`, `abs, `random`, ...
209 | Additionally supported are numerical JSXGraph functions from `JXG.Math`, see .
210 |
211 | | Function | Description |
212 | |:-------------------|:-----------------------------------------------------------------|
213 | | cos(x) | Cosine of x |
214 | | cosh(x) | Hyperbolic cosine of x |
215 | | pow(b, e) | e to the b |
216 | | log(x), ln(x) | Natural logarithm |
217 | | log(x, b) | Logarithm to base b |
218 | | log2(x), lb(x) | Logarithm to base 2 |
219 | | log10(x), ld(x) | Logarithm to base 10 |
220 | | tan(x) | Tangent of x |
221 | | cot(x) | Cotangent of x |
222 | | sqrt(x) | Square root of x |
223 | | cbrt(x) | Cube root of x |
224 | | nthroot(x) | n-th root of x |
225 | | ceil(x) | Get smallest integer n with n \> x. |
226 | | asin(x) | arcsine |
227 | | abs(x) | Absolute value of x |
228 | | max(a, b, c, \...) | Maximum value of all given values. |
229 | | min(a, b, c, \...) | Minimum value of all given values. |
230 | | exp(x) | EULER to the x |
231 | | atan2(y, x) | Returns the arctangent of the quotient of its arguments. |
232 | | random(max = 1) | Generate a random number between 0 and max. |
233 | | round(v) | Returns the value of a number rounded to the nearest integer. |
234 | | floor(x) | Returns the biggest integer n with n \< x. |
235 | | acos(x) | arccosine of x |
236 | | atan(x) | arctangent of x |
237 | | acot(x) | arccotangent of x |
238 | | sin(x) | sine of x |
239 | | sinh(x) | Hyperbolic sine of x |
240 | | factorial(n) | Calculates n! |
241 | | trunc(v, p = 0) | Truncate v after the p-th decimal. |
242 | | V(s) | Returns the value of the given element, e.g. sliders and angles. |
243 | | L(s) | Calculates the length of the given segment. |
244 | | X(P) Y(P) | Returns the x resp. y coordinate of the given point. |
245 | | dist(P, Q) | Compute the distance of two points. |
246 | | deg(A, B, C) | Calculate the angle of three points in degree. |
247 | | rad(A, B, C) | Calculate the angle of three points in rad. |
248 | | \$(id) | Look up the element to the given element id. |
249 |
250 | ### \$board methods
251 |
252 | | Method | Description |
253 | |:---------------------------------------------|:----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
254 | | update() | Update all dependencies and redraw the board. |
255 | | on(event, handler, context=board) | Register an event handler for the given event. |
256 | | off(event, handler=) | Deregister a given event handler or deregister all event handlers. |
257 | | setView(array, keepaspectratio=false) | Changes the viewport. An array with 4 numbers is expected, the four numbers represent the left, upper, right and lower bound of the viewport. If keepaspectratio is true, the viewport is adjusted to the same aspect ratio as the board container. |
258 | | setBoundingbox(array, keepaspectratio=false) | See setView. |
259 | | migratePoint(P, Q) | Exchange point P by point Q. |
260 | | colorblind(type) | Emulate color blindness. Possible types are*protanopia, tritanopia,* and*deuteranopia.* |
261 |
262 | ### Element functions
263 |
264 | Every element known to the loaded JSXGraph version is available inside Jessie
265 | by its element type, e.g. points can be created by calling point()
266 |
267 | ```js
268 | A = point(1, 2);
269 | ```
270 |
271 | The given parameters correspond to the parents array of the JXG.Board.create()
272 | method. Attributes are given after the function call itself in an object:
273 |
274 | ```js
275 | A = point(1, 2) << strokeColor: 'red', face: '[]', size: 7, fillColor: 'black' >>;
276 | ```
277 |
278 | For a possibly incomplete list including documentation, see [the JSXGraph
279 | docs](//jsxgraph.org/docs/); For a complete list see the
280 | **Element reference** section below.
281 |
282 | ## Accessing elements
283 |
284 | ### Variable assignment
285 |
286 | ```js
287 | A = point(1, 2);
288 | A.strokeColor = '#123456';
289 | ```
290 |
291 | ### \$
292 |
293 | ```js
294 | point(1, 2) << id: 'foo', name: 'bar' >>;
295 | $('foo').strokeColor = '#654321';
296 | ```
297 |
298 | ### Id
299 |
300 | ```js
301 | point(1, 2) << id: 'foo', name: 'bar' >>;
302 | foo.strokeColor = '#f00f00';
303 | ```
304 |
305 | This is possible only if **foo** is not used as a variable. This won\'t work:
306 |
307 | ```js
308 | foo = 1;
309 | (function () {
310 | point(1, 2) << id: 'foo' >>;
311 | return foo.X();
312 | })();
313 | ```
314 |
315 | ### Name
316 |
317 | ```js
318 | point(1, 2) << id: 'foo', name: 'bar' >>;
319 | bar.strokeColor = '#541541';
320 | ```
321 |
322 | This is possible only if there is not a variable called **bar** in the current
323 | or any higher scope. See **Id** above for an example.
324 |
325 | ## Element reference
326 |
327 | See
328 |
329 | ### Attributes
330 |
331 | Attributes are set like object properties
332 |
333 | ```js
334 | A.size = 10;
335 | A.face = '[]';
336 | ```
337 |
338 | See [the JSXGraph docs](//jsxgraph.uni-bayreuth.de/docs/) for available
339 | attributes. Texts and Points have two special attributes **X** and **Y** to set
340 | their coordinates.
341 |
342 | ### Subelements
343 |
344 | Subelements like labels for points or the baseline in sliders or the dot
345 | indicating an angle element is a right angle can be accessed like properties
346 |
347 | ```js
348 | A.label.strokecolor = 'red';
349 | ```
350 |
351 | The names used to access subelements correspond to their names used to set
352 | their attributes in`board.create`.
353 |
354 | ### Methods
355 |
356 | Not all methods of an element class are accessible in JessieCode. Currently these
357 | methods are available:
358 |
359 | - all elements
360 | - setLabelText
361 | - point
362 | - move
363 | - glide
364 | - free
365 | - X
366 | - Y
367 | - glider
368 | - all from point
369 | - setPosition
370 | - text
371 | - setText
372 | - free
373 | - move
374 | - slider
375 | - Value
376 | - angle
377 | - Value
378 |
379 |
--------------------------------------------------------------------------------
/examples/assign.html:
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1 |
2 |
3 |
4 | JessieCode example :: creator attr values
5 |
6 |
7 |
8 |
9 |
10 |
11 |
12 |
13 |