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Added #diagram:... comments for Kees Blom's railroad diagram generator

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Guido van Rossum 1994-08-17 13:19:13 +00:00
parent 2828e9dbd4
commit a322862eff
1 changed files with 19 additions and 3 deletions
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@ -2,6 +2,9 @@
# Change log: # Change log:
# 17-Aug-94:
# Added #diagram:... comments for Kees Blom's railroad diagram generator
# 3-May-94: # 3-May-94:
# Added else clause to try-except # Added else clause to try-except
@ -92,6 +95,16 @@
# eval_input is the input for the eval() and input() functions. # eval_input is the input for the eval() and input() functions.
# NB: compound_stmt in single_input is followed by extra NEWLINE! # NB: compound_stmt in single_input is followed by extra NEWLINE!
#diagram:token NAME
#diagram:token NUMBER
#diagram:token STRING
#diagram:token NEWLINE
#diagram:token ENDMARKER
#diagram:token INDENT
#diagram:output\input python.bla
#diagram:token DEDENT
#diagram:output\textwidth 20.04cm\oddsidemargin 0.0cm\evensidemargin 0.0cm
#diagram:rules
single_input: NEWLINE | simple_stmt | compound_stmt NEWLINE single_input: NEWLINE | simple_stmt | compound_stmt NEWLINE
file_input: (NEWLINE | stmt)* ENDMARKER file_input: (NEWLINE | stmt)* ENDMARKER
eval_input: testlist NEWLINE* ENDMARKER eval_input: testlist NEWLINE* ENDMARKER
@ -117,17 +130,20 @@ return_stmt: 'return' [testlist]
raise_stmt: 'raise' test [',' test] raise_stmt: 'raise' test [',' test]
import_stmt: 'import' NAME (',' NAME)* | 'from' NAME 'import' ('*' | NAME (',' NAME)*) import_stmt: 'import' NAME (',' NAME)* | 'from' NAME 'import' ('*' | NAME (',' NAME)*)
global_stmt: 'global' NAME (',' NAME)* global_stmt: 'global' NAME (',' NAME)*
access_stmt: 'access' ('*' | NAME (',' NAME)*) ':' accesstype (',' accesstype)* access_stmt: ('access' ('*' | NAME (',' NAME)*) ':' #diagram:break
accesstype (',' accesstype)*)
accesstype: NAME+ accesstype: NAME+
# accesstype should be ('public' | 'protected' | 'private') ['read'] ['write'] # accesstype should be ('public' | 'protected' | 'private') ['read'] ['write']
# but can't be because that would create undesirable reserved words! # but can't be because that would create undesirable reserved words!
exec_stmt: 'exec' expr ['in' test [',' test]] exec_stmt: 'exec' expr ['in' test [',' test]]
compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | funcdef | classdef compound_stmt: if_stmt | while_stmt | for_stmt | try_stmt | funcdef | classdef
if_stmt: 'if' test ':' suite ('elif' test ':' suite)* ['else' ':' suite] if_stmt: ('if' test ':' suite ('elif' test ':' suite)* #diagram:break
['else' ':' suite])
while_stmt: 'while' test ':' suite ['else' ':' suite] while_stmt: 'while' test ':' suite ['else' ':' suite]
for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite] for_stmt: 'for' exprlist 'in' testlist ':' suite ['else' ':' suite]
try_stmt: 'try' ':' suite (except_clause ':' suite)+ ['else' ':' suite] | 'try' ':' suite 'finally' ':' suite try_stmt: ('try' ':' suite (except_clause ':' suite)+ #diagram:break
['else' ':' suite] | 'try' ':' suite 'finally' ':' suite)
# NB compile.c makes sure that the default except clause is last # NB compile.c makes sure that the default except clause is last
except_clause: 'except' [test [',' test]] except_clause: 'except' [test [',' test]]
suite: simple_stmt | NEWLINE INDENT stmt+ DEDENT suite: simple_stmt | NEWLINE INDENT stmt+ DEDENT