1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
|
// CFscintilla.cpp
// this file is part of Context Free
// ---------------------
// Copyright (C) 2018 John Horigan - john@glyphic.com
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
// John Horigan can be contacted at john@glyphic.com or at
// John Horigan, 1209 Villa St., Mountain View, CA 94041-1123, USA
//
//
#include "CFscintilla.h"
#include <cctype>
#include <string>
#include <cstring>
#include <set>
#include <vector>
std::vector<const char*> CFscintilla::AutoComplete = {
"ARCREL", "ARCTO", "background", "bitand", "bitleft", "bitnot", "bitor", "bitright", "bitxor", "blend",
"CF::Align", "CF::AllowOverlap", "CF::Alpha", "CF::ArcCW", "CF::ArcLarge", "CF::Background",
"CF::BevelJoin", "CF::BorderDynamic", "CF::BorderFixed", "CF::ButtCap", "CF::cm", "CF::cmm", "CF::Color",
"CF::ColorDepth", "CF::Continuous", "CF::Cyclic", "CF::Dihedral", "CF::EvenOdd", "CF::Frame",
"CF::FrameTime", "CF::Impure", "CF::IsoWidth", "CF::MaxNatural", "CF::MaxShapes",
"CF::MinimumSize", "CF::MiterJoin",
"CF::Normal", "CF::Clear", "CF::Xor", "CF::Plus", "CF::Multiply", "CF::Screen", "CF::Overlay",
"CF::Darken", "CF::Lighten", "CF::ColorDodge", "CF::ColorBurn", "CF::HardLight", "CF::SoftLight",
"CF::Difference", "CF::Exclusion",
"CF::p11g", "CF::p11m", "CF::p1m1", "CF::p2", "CF::p2mg", "CF::p2mm", "CF::p3", "CF::p3m1", "CF::p31m",
"CF::p4", "CF::p4g", "CF::p4m", "CF::p6", "CF::p6m", "CF::pg", "CF::pgg", "CF::pm", "CF::pmg", "CF::pmm",
"CF::RoundCap", "CF::RoundJoin", "CF::Size", "CF::SquareCap", "CF::StartShape", "CF::Symmetry", "CF::Tile", "CF::Time",
"CIRCLE", "CLOSEPOLY", "CURVEREL", "CURVETO", "FILL", "import", "include", "LINEREL", "LINETO", "MOVEREL", "MOVETO", "SQUARE", "STROKE", "TRIANGLE",
"rand", "rand::cauchy", "rand::chisquared", "rand::exponential", "rand::extremeV",
"rand::fisherF", "rand::gamma", "rand::lognormal", "rand::normal", "rand::studentT", "rand::weibull",
"randint", "randint::bernoulli", "randint::binomial", "randint::discrete",
"randint::geometric", "randint::negbinomial", "randint::poisson", "rand_static", "startshape",
"floor", "ceiling", "infinity", "factorial", "isNatural", "divides", "div",
"dot", "cross", "hsb2rgb", "rgb2hsb"
};
static std::size_t isUTF8op(const char* text)
{
static const char* utf8ops[6] = {
"\xe2\x80\xa6", "\xc2\xb1", "\xe2\x89\xa4", "\xe2\x89\xa5", "\xe2\x89\xa0", "\xe2\x88\x9e"
};
for (int op = 0; op < 6; ++op) {
auto len = std::strlen(utf8ops[op]);
if (std::strncmp(text, utf8ops[op], len) == 0)
return len;
}
return 0;
}
CFscintilla::Style
CFscintilla::StyleLine(std::size_t length, const char* text, char* styles, Style initStyle)
{
const unsigned char* utext = reinterpret_cast<const unsigned char*>(text);
Style state = initStyle;
std::size_t idStart = 0;
bool afterColon = false;
bool decimalPointFound = false;
int digits = 0;
for (std::size_t i = 0; i < length;) {
switch (state) {
// break == style current character and move on to next
// continue == restart current character with a new state
// It's always safe to read text[i+1] because of null termination
case StyleDefault:
if (std::isspace(utext[i])) {
styles[i] = StyleDefault;
break;
}
if (text[i] == '.' && text[i+1] == '.') {
styles[i] = styles[i+1] = StyleSymbol;
++i;
break;
}
if ((text[i] == '.' && std::isdigit(utext[i+1])) || std::isdigit(utext[i])) {
decimalPointFound = false;
digits = 0;
state = StyleNumber;
continue;
}
if (std::size_t sz = isUTF8op(text + i)) {
for (std::size_t j = 0; j < sz; ++j)
styles[i+j] = StyleSymbol;
i += sz;
continue; // don't break, i is already incremented
}
if ((utext[i] & 0x80) || std::isalpha(utext[i]) || text[i] == '_') {
idStart = i; afterColon = false;
state = StyleIdentifier;
continue;
}
if (text[i] == '#' || (text[i] == '/' && text[i+1] == '/')) {
// Style rest of line but leave EOL with default style
// to prevent wrapping of comment style
while (i < length && text[i] != '\n' && text[i] != '\r')
styles[i++] = StyleComment;
continue;
}
if (text[i] == '/' && text[i+1] == '*') {
state = StyleComment;
styles[i] = styles[i+1] = StyleComment;
++i;
break;
}
if (text[i] == '"') {
state = StyleString;
styles[i] = StyleString;
break;
}
if (strchr("<>[]{}()+-*/|=^&@:;,!", utext[i])) {
styles[i] = StyleSymbol;
break;
}
styles[i] = StyleDefault;
break;
case StyleComment:
styles[i] = StyleComment;
if (text[i] == '*' && text[i+1] == '/') {
styles[++i] = StyleComment;
state = StyleDefault;
}
break;
case StyleString:
if (text[i] == '"') {
styles[i] = StyleString;
state = StyleDefault;
break;
}
if (text[i] == '\r' || text[i] == '\n') {
// EOL must be default styled to prevent string style wrapping
state = StyleDefault;
continue;
}
styles[i] = StyleString;
break;
case StyleNumber:
if (std::isdigit(utext[i])) {
++digits;
styles[i] = StyleNumber;
break;
}
if (text[i] == '.') {
if (decimalPointFound || text[i+1] == '.') {
// This is the start of another number or the .. operator
state = StyleDefault;
continue;
}
styles[i] = StyleNumber;
decimalPointFound = true;
break;
}
if ((text[i] == 'e' || text[i] == 'E') && (digits > 0)) {
if ((text[i+1] == '+' || text[i+1] == '-') && (i + 2 < length) &&
std::isdigit(utext[i+2]))
{
styles[i] = styles[i+1] = StyleNumber;
i += 2; // style the e/E and +/-
} else if (std::isdigit(utext[i+1])) {
styles[i] = StyleNumber;
++i; // style the e/E
} else {
state = StyleDefault;
continue; // e/E is not part of number
}
// style the exponent
while (i < length && std::isdigit(utext[i]))
styles[i++] = StyleNumber;
state = StyleDefault;
continue; // don't break, i is already incremented
}
state = StyleDefault;
continue;
case StyleIdentifier:
if (std::isdigit(utext[i]) && !afterColon) {
styles[i] = StyleIdentifier;
break;
}
if (text[i] == ':' && text[i+1] == ':') {
styles[i] = styles[i+1] = StyleIdentifier;
++i;
afterColon = true;
break;
}
afterColon = false;
if (((utext[i] & 0x80) && !isUTF8op(text + i)) ||
std::isalpha(utext[i]) || text[i] == '_')
{
styles[i] = StyleIdentifier;
break;
}
if (i + 5 <= length && std::strncmp(text + i, ".cfdg", 5) == 0) {
// identifier will be restyled as a string
i += 5;
}
// Done with current identifier. Check if it is actually a
// keyword, builtin, or cfdg file (string).
StyleId(i - idStart, text + idStart, styles + idStart);
state = StyleDefault;
continue;
default:
// Should never happen, but the warnings are annoying
styles[i] = state;
break;
}
++i; // skipped if we continue
}
// If line ended w/o EOL and on an identifier then restyle the identifier
if (state == StyleIdentifier)
StyleId(length - idStart, text + idStart, styles + idStart);
// Comment style is the only style that wraps
return state == StyleComment ? StyleComment : StyleDefault;
}
void
CFscintilla::StyleId(std::size_t length, const char* text, char* styles)
{
using stringSet = std::set<std::string>;
static const stringSet keywords = {
"a", "alpha",
"b", "background", "blend", "brightness",
"case", "clone",
"else",
"f", "finally", "flip",
"h", "hue",
"if", "import", "include",
"let", "loop",
"path",
"r", "rotate", "rule",
"s", "saturation", "sat", "size", "skew", "startshape", "shape",
"tile", "time", "timescale", "trans", "transform",
"x", "x1", "x2",
"y", "y1", "y2",
"z"
};
static const stringSet builtins = {
"cos", "sin", "tan", "cot", "acos", "asin", "atan", "acot", "cosh", "sinh", "tanh", "acosh", "asinh", "atanh", "log", "log10",
"sqrt", "exp", "abs", "floor", "ceiling", "infinity", "factorial", "sg", "isNatural", "bitnot", "bitor", "bitand", "bitxor",
"bitleft", "bitright", "atan2", "mod", "divides", "div", "dot", "cross", "hsb2rgb", "rgb2hsb", "vec", "min", "max", "ftime",
"frame", "rand_static", "rand", "rand::exponential", "rand::gamma", "rand::weibull", "rand::extremeV",
"rand::normal", "rand::lognormal", "rand::chisquared", "rand::cauchy", "rand::fisherF",
"rand::studentT", "randint", "randint::bernoulli", "randint::binomial", "randint::negbinomial",
"randint::poisson", "randint::discrete", "randint::geometric",
"CIRCLE", "SQUARE", "TRIANGLE", "FILL", "STROKE",
"MOVETO", "LINETO", "ARCTO", "CURVETO", "MOVEREL", "LINEREL", "ARCREL", "CURVEREL", "CLOSEPOLY",
"CF::Normal", "CF::Clear", "CF::Xor" "CF::Plus", "CF::Multiply", "CF::Screen", "CF::Overlay",
"CF::Darken", "CF::Lighten", "CF::ColorDodge", "CF::ColorBurn", "CF::HardLight", "CF::SoftLight",
"CF::Difference", "CF::Exclusion",
"CF::None", "CF::MiterJoin", "CF::RoundJoin", "CF::BevelJoin", "CF::ButtCap", "CF::RoundCap",
"CF::SquareCap", "CF::ArcCW", "CF::ArcLarge", "CF::Continuous", "CF::Align", "CF::EvenOdd",
"CF::IsoWidth", "CF::Cyclic", "CF::Dihedral", "CF::p11g", "CF::p11m", "CF::p1m1", "CF::p2",
"CF::p2mg", "CF::p2mm", "CF::pm", "CF::pg", "CF::cm", "CF::pmm", "CF::pmg", "CF::pgg", "CF::cmm",
"CF::p4", "CF::p4m", "CF::p4g", "CF::p3", "CF::p3m1", "CF::p31m", "CF::p6", "CF::p6m",
"CF::AllowOverlap", "CF::Alpha", "CF::Background", "CF::BorderDynamic", "CF::BorderFixed",
"CF::Color", "CF::ColorDepth", "CF::Frame", "CF::FrameTime", "CF::Impure", "CF::MaxNatural",
"CF::MaxShapes", "CF::MinimumSize", "CF::Size", "CF::StartShape", "CF::Symmetry",
"CF::Tile", "CF::Time"
};
Style state = StyleIdentifier;
std::string temp{text, length};
if (length > 5 && std::strncmp(text + (length - 5), ".cfdg", 5) == 0)
state = StyleString;
else if (keywords.count(temp))
state = StyleKeywords;
else if (builtins.count(temp))
state = StyleBuiltins;
if (state != StyleIdentifier)
for (std::size_t i = 0; i < length; ++i)
styles[i] = state;
}
void
CFscintilla::StyleLines(SciFnDirect directFunction, sptr_t sciptr, Sci_Position startLine, Sci_Position endLine)
{
Sci_Position startPos = (Sci_Position)directFunction(sciptr, SCI_POSITIONFROMLINE, startLine, 0);
CFscintilla::Style state = Style::StyleDefault;
if (startLine > 0 &&
static_cast<Style>(directFunction(sciptr, SCI_GETSTYLEAT, startPos - 1, 0) == Style::StyleComment))
{
state = Style::StyleComment;
}
std::vector<char> text, styles;
directFunction(sciptr, SCI_STARTSTYLING, startPos, 0);
for (Sci_Position i = startLine; i <= endLine; ++i) {
Sci_Position length = (Sci_Position)directFunction(sciptr, SCI_LINELENGTH, i, 0);
if (text.size() < (size_t)(length + 1))
text.resize(length + 1);
if (styles.size() < (size_t)length)
styles.resize(length);
directFunction(sciptr, SCI_GETLINE, i, (sptr_t)text.data());
state = StyleLine(length, text.data(), styles.data(), state);
directFunction(sciptr, SCI_SETSTYLINGEX, length, (sptr_t)styles.data());
}
}
|
