Mercurial Repositories > eric / file comparison
comparison: eric6/DebugClients/Python/coverage/templite.py
eric6/DebugClients/Python/coverage/templite.py
- changeset 7427
- 362cd1b6f81a
- parent 6942
- 2602857055c5
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| 7426:dc171b1d8261 | 7427:362cd1b6f81a |
|---|---|
| 1 # Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 | 1 # Licensed under the Apache License: http://www.apache.org/licenses/LICENSE-2.0 |
| 2 # For details: https://bitbucket.org/ned/coveragepy/src/default/NOTICE.txt | 2 # For details: https://github.com/nedbat/coveragepy/blob/master/NOTICE.txt |
| 3 | 3 |
| 4 """A simple Python template renderer, for a nano-subset of Django syntax. | 4 """A simple Python template renderer, for a nano-subset of Django syntax. |
| 5 | 5 |
| 6 For a detailed discussion of this code, see this chapter from 500 Lines: | 6 For a detailed discussion of this code, see this chapter from 500 Lines: |
| 7 http://aosabook.org/en/500L/a-template-engine.html | 7 http://aosabook.org/en/500L/a-template-engine.html |
| 88 | 88 |
| 89 Comments are within curly-hash markers:: | 89 Comments are within curly-hash markers:: |
| 90 | 90 |
| 91 {# This will be ignored #} | 91 {# This will be ignored #} |
| 92 | 92 |
| 93 Any of these constructs can have a hypen at the end (`-}}`, `-%}`, `-#}`), | 93 Lines between `{% joined %}` and `{% endjoined %}` will have lines stripped |
| 94 and joined. Be careful, this could join words together! | |
| 95 | |
| 96 Any of these constructs can have a hyphen at the end (`-}}`, `-%}`, `-#}`), | |
| 94 which will collapse the whitespace following the tag. | 97 which will collapse the whitespace following the tag. |
| 95 | 98 |
| 96 Construct a Templite with the template text, then use `render` against a | 99 Construct a Templite with the template text, then use `render` against a |
| 97 dictionary context to create a finished string:: | 100 dictionary context to create a finished string:: |
| 98 | 101 |
| 152 ops_stack = [] | 155 ops_stack = [] |
| 153 | 156 |
| 154 # Split the text to form a list of tokens. | 157 # Split the text to form a list of tokens. |
| 155 tokens = re.split(r"(?s)({{.*?}}|{%.*?%}|{#.*?#})", text) | 158 tokens = re.split(r"(?s)({{.*?}}|{%.*?%}|{#.*?#})", text) |
| 156 | 159 |
| 157 squash = False | 160 squash = in_joined = False |
| 158 | 161 |
| 159 for token in tokens: | 162 for token in tokens: |
| 160 if token.startswith('{'): | 163 if token.startswith('{'): |
| 161 start, end = 2, -2 | 164 start, end = 2, -2 |
| 162 squash = (token[-3] == '-') | 165 squash = (token[-3] == '-') |
| 194 words[1], | 197 words[1], |
| 195 self._expr_code(words[3]) | 198 self._expr_code(words[3]) |
| 196 ) | 199 ) |
| 197 ) | 200 ) |
| 198 code.indent() | 201 code.indent() |
| 202 elif words[0] == 'joined': | |
| 203 ops_stack.append('joined') | |
| 204 in_joined = True | |
| 199 elif words[0].startswith('end'): | 205 elif words[0].startswith('end'): |
| 200 # Endsomething. Pop the ops stack. | 206 # Endsomething. Pop the ops stack. |
| 201 if len(words) != 1: | 207 if len(words) != 1: |
| 202 self._syntax_error("Don't understand end", token) | 208 self._syntax_error("Don't understand end", token) |
| 203 end_what = words[0][3:] | 209 end_what = words[0][3:] |
| 204 if not ops_stack: | 210 if not ops_stack: |
| 205 self._syntax_error("Too many ends", token) | 211 self._syntax_error("Too many ends", token) |
| 206 start_what = ops_stack.pop() | 212 start_what = ops_stack.pop() |
| 207 if start_what != end_what: | 213 if start_what != end_what: |
| 208 self._syntax_error("Mismatched end tag", end_what) | 214 self._syntax_error("Mismatched end tag", end_what) |
| 209 code.dedent() | 215 if end_what == 'joined': |
| 216 in_joined = False | |
| 217 else: | |
| 218 code.dedent() | |
| 210 else: | 219 else: |
| 211 self._syntax_error("Don't understand tag", words[0]) | 220 self._syntax_error("Don't understand tag", words[0]) |
| 212 else: | 221 else: |
| 213 # Literal content. If it isn't empty, output it. | 222 # Literal content. If it isn't empty, output it. |
| 214 if squash: | 223 if in_joined: |
| 224 token = re.sub(r"\s*\n\s*", "", token.strip()) | |
| 225 elif squash: | |
| 215 token = token.lstrip() | 226 token = token.lstrip() |
| 216 if token: | 227 if token: |
| 217 buffered.append(repr(token)) | 228 buffered.append(repr(token)) |
| 218 | 229 |
| 219 if ops_stack: | 230 if ops_stack: |
