It is quite simple: you need a (recursive) parser for this, the same way the language is interpreted (i suppose?) by one. I suggest to retrieve your yacc utility and start writing...
If you are looking for a regex-solution (grep, sed, awk, ...): none of these will work correctly, because languages are context-sensitive. Consider i.e. :
and:
and that is just one of the myriads of possibilities to lead a regexp astray.
Hi,
I'm looking to delete some files from directories.
I've just put in a file the location of these files.
e.g:
in file supprs.txt there is:
/usr/host/t1.txt
/etc/dev/u1.java
/home/new/files/view.c
Is it possible to take this file "supprs.txt" as a parameter in a shell command ? (2 Replies)
I want to remove the commented lines in a file identified by ' symbol at the start of each ine. A sample example will be like:
Input
-----
'IFerr_flag=0THEN
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
iferr_flag=0then
Output
-------... (3 Replies)
Hello,
I have a file as follow
a
b
c
c
d
d
e
I would like to write a awk command to insert # from the first occurence of
"c" to the end of the files.
OUTPUT should be like this
a
b
#c (5 Replies)
Hi,
i need some help. i am not sure about my idea.
I have a script directory under my home directory,which has a lot of scripts in it.
These are some names of the scripts in /axxhome/prdv/script
aly300.sh
axt300.sh
arv300.sh
clp300.sh
ctth300.sh
aly400.sh
axt400.sh
arv400.sh... (6 Replies)
Legends,
Can you please help me in following.
I need to comment lines from “/tmp/a.txt” from the line A to line B through the command prompt only.
Please use variables not direct values like 2 or 5
It can be done with VI editor but it's not matches with my requirement (: 2,5 s/^/#/g).
... (1 Reply)
Platform : RHEL 5.4
I have several .sql files in a directory. I want to comment lines 10 to 25 for all .sql files.
How can I do this ?
The symbol for comment in SQL is --
eg:
-- select salary from emp where empname = 'URS' ; (3 Replies)
Please Help (novice to PERL and SHELL scripting)…. Need to create a script which removes all lines in $filename = "cycle_calendar_ftp_out" older than current date – a variable which will be a number of days passed to script. For Ex it will look at the end date which is the last field (4) and... (2 Replies)
AIX.
we have multiple files eg B1234567 B1235468 etc. (numbers change daily, only constant is the B prefix)
trying to use using sed '/numberrange and length varies /d ' to remove a specific number range out of one of these files , we just don't know which one its in, as it could be in... (4 Replies)
Hello,
I have some code that works more or less. This is called by a make file to adjust some hard-coded definitions in the src code. The script generated some values by looking at some of the src files and then writes those values to specific locations in other files. The awk code is used to... (3 Replies)
Discussion started by: LMHmedchem
3 Replies
LEARN ABOUT LINUX
erl_comment_scan
erl_comment_scan(3erl) Erlang Module Definition erl_comment_scan(3erl)NAME
erl_comment_scan - Functions for reading comment lines from Erlang source code.
DESCRIPTION
Functions for reading comment lines from Erlang source code.
DATA TYPES
comment() = {integer(), integer(), integer(), [string()]} :
EXPORTS
file(FileName::filename() (see module file)) -> [Comment]
Types Comment = {Line, Column, Indentation, Text}
Line = integer()
Column = integer()
Indentation = integer()
Text = [string()]
Extracts comments from an Erlang source code file. Returns a list of entries representing multi-line comments, listed in order of
increasing line-numbers. For each entry, Text is a list of strings representing the consecutive comment lines in top-down order; the
strings contain all characters following (but not including) the first comment-introducing % character on the line, up to (but not
including) the line-terminating newline.
Furthermore, Line is the line number and Column the left column of the comment (i.e., the column of the comment-introducing % char-
acter). Indent is the indentation (or padding), measured in character positions between the last non-whitespace character before the
comment (or the left margin), and the left column of the comment. Line and Column are always positive integers, and Indentation is a
nonnegative integer.
Evaluation exits with reason {read, Reason} if a read error occurred, where Reason is an atom corresponding to a Posix error code;
see the module file(3erl) for details.
join_lines(Lines::[CommentLine]) -> [Comment]
Types CommentLine = {Line, Column, Indent, string()}
Line = integer()
Column = integer()
Indent = integer()
Comment = {Line, Column, Indent, Text}
Text = [string()]
Joins individual comment lines into multi-line comments. The input is a list of entries representing individual comment lines, in
order of decreasing line-numbers ; see scan_lines/1 for details. The result is a list of entries representing multi-line comments,
still listed in order of decreasing line-numbers , but where for each entry, Text is a list of consecutive comment lines in order of
increasing line-numbers (i.e., top-down).
See also: scan_lines/1 .
scan_lines(Text::string()) -> [CommentLine]
Types CommentLine = {Line, Column, Indent, Text}
Line = integer()
Column = integer()
Indent = integer()
Text = string()
Extracts individual comment lines from a source code string. Returns a list of comment lines found in the text, listed in order of
decreasing line-numbers, i.e., the last comment line in the input is first in the resulting list. Text is a single string, contain-
ing all characters following (but not including) the first comment-introducing % character on the line, up to (but not including)
the line-terminating newline. For details on Line , Column and Indent , see file/1 .
string(Text::string()) -> [Comment]
Types Comment = {Line, Column, Indentation, Text}
Line = integer()
Column = integer()
Indentation = integer()
Text = [string()]
Extracts comments from a string containing Erlang source code. Except for reading directly from a string, the behaviour is the same
as for file/1 .
See also: file/1 .
AUTHORS
Richard Carlsson <richardc@it.uu.se >
syntax_tools 1.6.7 erl_comment_scan(3erl)