| flex.info (flex-2.6.3) | : | flex.info (flex-2.6.4) |
|---|
| File: flex.info, Node: Top, Next: Copyright, Prev: (dir), Up: (dir) | | File: flex.info, Node: Top, Next: Copyright, Prev: (dir), Up: (dir) |
| | |
| flex | | flex |
| **** | | **** |
| | |
| This manual describes 'flex', a tool for generating programs that | | This manual describes 'flex', a tool for generating programs that |
| perform pattern-matching on text. The manual includes both tutorial and | | perform pattern-matching on text. The manual includes both tutorial and |
| reference sections. | | reference sections. |
| | |
|
| This edition of 'The flex Manual' documents 'flex' version 2.6.3. It | | This edition of 'The flex Manual' documents 'flex' version 2.6.4. It |
| was last updated on 22 October 2016. | | was last updated on 6 May 2017. |
| | |
| This manual was written by Vern Paxson, Will Estes and John Millaway. | | This manual was written by Vern Paxson, Will Estes and John Millaway. |
| | |
| * Menu: | | * Menu: |
| | |
| * Copyright:: | | * Copyright:: |
| * Reporting Bugs:: | | * Reporting Bugs:: |
| * Introduction:: | | * Introduction:: |
| * Simple Examples:: | | * Simple Examples:: |
| * Format:: | | * Format:: |
| | |
| skipping to change at line 1708 | | skipping to change at line 1708 |
|---|
| if ( ! yyin ) | | if ( ! yyin ) |
| error( ... ); | | error( ... ); |
| | |
| yy_switch_to_buffer( | | yy_switch_to_buffer( |
| yy_create_buffer( yyin, YY_BUF_SIZE ) ); | | yy_create_buffer( yyin, YY_BUF_SIZE ) ); |
| | |
| BEGIN(INITIAL); | | BEGIN(INITIAL); |
| } | | } |
| | |
| <<EOF>> { | | <<EOF>> { |
|
| if ( --include_stack_ptr 0 ) | | if ( --include_stack_ptr == 0 ) |
| { | | { |
| yyterminate(); | | yyterminate(); |
| } | | } |
| | |
| else | | else |
| { | | { |
| yy_delete_buffer( YY_CURRENT_BUFFER ); | | yy_delete_buffer( YY_CURRENT_BUFFER ); |
| yy_switch_to_buffer( | | yy_switch_to_buffer( |
| include_stack[include_stack_ptr] ); | | include_stack[include_stack_ptr] ); |
| } | | } |
| | |
| skipping to change at line 4883 | | skipping to change at line 4883 |
|---|
| analyze those functions to figure out what they're doing, and then | | analyze those functions to figure out what they're doing, and then |
| replace 'input()' with an appropriate definition of 'YY_INPUT'. You | | replace 'input()' with an appropriate definition of 'YY_INPUT'. You |
| shouldn't need to (and must not) replace 'flex''s 'unput()' function. | | shouldn't need to (and must not) replace 'flex''s 'unput()' function. |
| | |
| File: flex.info, Node: Is there a way to make flex treat NULL like a regular ch
aracter?, Next: Whenever flex can not match the input it says "flex scanner jam
med"., Prev: I am trying to port code from AT&T lex that uses yysptr and yysbuf
., Up: FAQ | | File: flex.info, Node: Is there a way to make flex treat NULL like a regular ch
aracter?, Next: Whenever flex can not match the input it says "flex scanner jam
med"., Prev: I am trying to port code from AT&T lex that uses yysptr and yysbuf
., Up: FAQ |
| | |
| Is there a way to make flex treat NULL like a regular character? | | Is there a way to make flex treat NULL like a regular character? |
| ================================================================ | | ================================================================ |
| | |
| Yes, '\0' and '\x00' should both do the trick. Perhaps you have an | | Yes, '\0' and '\x00' should both do the trick. Perhaps you have an |
|
| ancient version of 'flex'. The latest release is version 2.6.3. | | ancient version of 'flex'. The latest release is version 2.6.4. |
| | |
| File: flex.info, Node: Whenever flex can not match the input it says "flex scan
ner jammed"., Next: Why doesn't flex have non-greedy operators like perl does?,
Prev: Is there a way to make flex treat NULL like a regular character?, Up: F
AQ | | File: flex.info, Node: Whenever flex can not match the input it says "flex scan
ner jammed"., Next: Why doesn't flex have non-greedy operators like perl does?,
Prev: Is there a way to make flex treat NULL like a regular character?, Up: F
AQ |
| | |
| Whenever flex can not match the input it says "flex scanner jammed". | | Whenever flex can not match the input it says "flex scanner jammed". |
| ==================================================================== | | ==================================================================== |
| | |
| You need to add a rule that matches the otherwise-unmatched text, e.g., | | You need to add a rule that matches the otherwise-unmatched text, e.g., |
| | |
| %option yylineno | | %option yylineno |
| %% | | %% |
| | | |
| End of changes. 3 change blocks. |
|---|
| 4 lines changed or deleted | | 4 lines changed or added |
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