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CSTRINGS.ICN
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1992-11-26
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2KB
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90 lines
############################################################################
#
# File: cstrings.icn
#
# Subject: Program to print strings in C files
#
# Author: Robert J. Alexander
#
# Date: September 17, 1990
#
###########################################################################
#
# Program to print all strings (enclosed in double quotes) in C source
# files.
#
procedure main(arg)
local c,f,fn,line,lineNbr,s
if *arg = 0 then stop("Usage: cstrings file...")
every fn := !arg do {
f := open(fn) | stop("Can't open \"",fn,"\"")
lineNbr := 0
while line := read(f) do line ? {
lineNbr +:= 1
while tab(upto('/"\'')) do {
case move(1) of {
#
# Comment -- handled because it could contain something that
# looks like a string.
#
"/": {
if ="*" then {
while not tab(find("*/") + 2) do {
&subject := read(f) | stop("Unexpected EOF in comment")
lineNbr +:= 1
}
}
}
#
# String
#
"\"": {
s := "\""
while s ||:= tab(upto('"\\')) do {
s ||:= c := move(1)
case c of {
"\\": {
if not (s ||:= move(1)) then {
s[-1] := ""
&subject := read(f) |
stop("Unexpected EOF in string")
lineNbr +:= 1
}
}
"\"": {
break
}
}
}
write("+",lineNbr," ",fn," ",s)
}
#
# Character constant -- handled because it might contain
# a double quote, which could be mistaken for the start
# of a string.
#
"'": {
while tab(upto('\'\\')) do {
c := move(1)
case c of {
"\\": {
if not move(1) then {
&subject := read(f) |
stop("Unexpected EOF in character constant")
lineNbr +:= 1
}
}
"'": {
break
}
}
}
}
}
}
}
close(f)
}
end