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
|
// GFM table, https://github.github.com/gfm/#tables-extension-
'use strict';
var isSpace = require('../common/utils').isSpace;
function getLine(state, line) {
var pos = state.bMarks[line] + state.tShift[line],
max = state.eMarks[line];
return state.src.substr(pos, max - pos);
}
function escapedSplit(str) {
var result = [],
pos = 0,
max = str.length,
ch,
isEscaped = false,
lastPos = 0,
current = '';
ch = str.charCodeAt(pos);
while (pos < max) {
if (ch === 0x7c/* | */) {
if (!isEscaped) {
// pipe separating cells, '|'
result.push(current + str.substring(lastPos, pos));
current = '';
lastPos = pos + 1;
} else {
// escaped pipe, '\|'
current += str.substring(lastPos, pos - 1);
lastPos = pos;
}
}
isEscaped = (ch === 0x5c/* \ */);
pos++;
ch = str.charCodeAt(pos);
}
result.push(current + str.substring(lastPos));
return result;
}
module.exports = function table(state, startLine, endLine, silent) {
var ch, lineText, pos, i, l, nextLine, columns, columnCount, token,
aligns, t, tableLines, tbodyLines, oldParentType, terminate,
terminatorRules, firstCh, secondCh;
// should have at least two lines
if (startLine + 2 > endLine) { return false; }
nextLine = startLine + 1;
if (state.sCount[nextLine] < state.blkIndent) { return false; }
// if it's indented more than 3 spaces, it should be a code block
if (state.sCount[nextLine] - state.blkIndent >= 4) { return false; }
// first character of the second line should be '|', '-', ':',
// and no other characters are allowed but spaces;
// basically, this is the equivalent of /^[-:|][-:|\s]*$/ regexp
pos = state.bMarks[nextLine] + state.tShift[nextLine];
if (pos >= state.eMarks[nextLine]) { return false; }
firstCh = state.src.charCodeAt(pos++);
if (firstCh !== 0x7C/* | */ && firstCh !== 0x2D/* - */ && firstCh !== 0x3A/* : */) { return false; }
if (pos >= state.eMarks[nextLine]) { return false; }
secondCh = state.src.charCodeAt(pos++);
if (secondCh !== 0x7C/* | */ && secondCh !== 0x2D/* - */ && secondCh !== 0x3A/* : */ && !isSpace(secondCh)) {
return false;
}
// if first character is '-', then second character must not be a space
// (due to parsing ambiguity with list)
if (firstCh === 0x2D/* - */ && isSpace(secondCh)) { return false; }
while (pos < state.eMarks[nextLine]) {
ch = state.src.charCodeAt(pos);
if (ch !== 0x7C/* | */ && ch !== 0x2D/* - */ && ch !== 0x3A/* : */ && !isSpace(ch)) { return false; }
pos++;
}
lineText = getLine(state, startLine + 1);
columns = lineText.split('|');
aligns = [];
for (i = 0; i < columns.length; i++) {
t = columns[i].trim();
if (!t) {
// allow empty columns before and after table, but not in between columns;
// e.g. allow ` |---| `, disallow ` ---||--- `
if (i === 0 || i === columns.length - 1) {
continue;
} else {
return false;
}
}
if (!/^:?-+:?$/.test(t)) { return false; }
if (t.charCodeAt(t.length - 1) === 0x3A/* : */) {
aligns.push(t.charCodeAt(0) === 0x3A/* : */ ? 'center' : 'right');
} else if (t.charCodeAt(0) === 0x3A/* : */) {
aligns.push('left');
} else {
aligns.push('');
}
}
lineText = getLine(state, startLine).trim();
if (lineText.indexOf('|') === -1) { return false; }
if (state.sCount[startLine] - state.blkIndent >= 4) { return false; }
columns = escapedSplit(lineText);
if (columns.length && columns[0] === '') columns.shift();
if (columns.length && columns[columns.length - 1] === '') columns.pop();
// header row will define an amount of columns in the entire table,
// and align row should be exactly the same (the rest of the rows can differ)
columnCount = columns.length;
if (columnCount === 0 || columnCount !== aligns.length) { return false; }
if (silent) { return true; }
oldParentType = state.parentType;
state.parentType = 'table';
// use 'blockquote' lists for termination because it's
// the most similar to tables
terminatorRules = state.md.block.ruler.getRules('blockquote');
token = state.push('table_open', 'table', 1);
token.map = tableLines = [ startLine, 0 ];
token = state.push('thead_open', 'thead', 1);
token.map = [ startLine, startLine + 1 ];
token = state.push('tr_open', 'tr', 1);
token.map = [ startLine, startLine + 1 ];
for (i = 0; i < columns.length; i++) {
token = state.push('th_open', 'th', 1);
if (aligns[i]) {
token.attrs = [ [ 'style', 'text-align:' + aligns[i] ] ];
}
token = state.push('inline', '', 0);
token.content = columns[i].trim();
token.children = [];
token = state.push('th_close', 'th', -1);
}
token = state.push('tr_close', 'tr', -1);
token = state.push('thead_close', 'thead', -1);
for (nextLine = startLine + 2; nextLine < endLine; nextLine++) {
if (state.sCount[nextLine] < state.blkIndent) { break; }
terminate = false;
for (i = 0, l = terminatorRules.length; i < l; i++) {
if (terminatorRules[i](state, nextLine, endLine, true)) {
terminate = true;
break;
}
}
if (terminate) { break; }
lineText = getLine(state, nextLine).trim();
if (!lineText) { break; }
if (state.sCount[nextLine] - state.blkIndent >= 4) { break; }
columns = escapedSplit(lineText);
if (columns.length && columns[0] === '') columns.shift();
if (columns.length && columns[columns.length - 1] === '') columns.pop();
if (nextLine === startLine + 2) {
token = state.push('tbody_open', 'tbody', 1);
token.map = tbodyLines = [ startLine + 2, 0 ];
}
token = state.push('tr_open', 'tr', 1);
token.map = [ nextLine, nextLine + 1 ];
for (i = 0; i < columnCount; i++) {
token = state.push('td_open', 'td', 1);
if (aligns[i]) {
token.attrs = [ [ 'style', 'text-align:' + aligns[i] ] ];
}
token = state.push('inline', '', 0);
token.content = columns[i] ? columns[i].trim() : '';
token.children = [];
token = state.push('td_close', 'td', -1);
}
token = state.push('tr_close', 'tr', -1);
}
if (tbodyLines) {
token = state.push('tbody_close', 'tbody', -1);
tbodyLines[1] = nextLine;
}
token = state.push('table_close', 'table', -1);
tableLines[1] = nextLine;
state.parentType = oldParentType;
state.line = nextLine;
return true;
};
|
