# xref.awk - cross reference an awk program
BEGIN {
# create array of keywords to be ignored by lexer
asplit( "BEGIN:END:atan2:break:close:continue:cos:delete:" \
"do:else:exit:exp:for:getline:gsub:if:in:index:int:" \
"length:log:match:next:print:printf:rand:return:sin:" \
"split:sprintf:sqrt:srand:sub:substr:system:while" ,
keywords, ":" )
# build the symbol-state table
split( "00:00:00:00:00:00:00:00:00:00:" \
"20:10:10:12:12:11:07:00:00:00:" \
"08:08:08:08:08:33:08:00:00:00:" \
"08:44:08:36:08:08:08:00:00:00:" \
"08:44:45:42:42:41:08" , machine, ":" )
# parse the input and store an intermediate representation
# of the cross-reference information
# set up the machine
state = 1
# run the machine
for ( ;; ) {
# get next symbol
symb = lex( )
nextstate = substr( machine[ state symb] , 1 , 1 )
act = substr( machine[ state symb] , 2 , 1 )
# perform required action
if ( act == "0" )
; # do nothing
else if ( act == "1" ) {
if ( ! inarray( tok, names) )
names[ ++ nnames] = tok
lines[ tok,++ xnames[ tok] ] = NR }
else if ( act == "2" ) {
if ( tok in local ) {
tok = tok "(" funcname ")"
if ( ! inarray( tok, names) )
names[ ++ nnames] = tok
lines[ tok,++ xnames[ tok] ] = NR }
else {
tok = tok "()"
if ( ! inarray( tok, names) )
names[ ++ nnames] = tok
lines[ tok,++ xnames[ tok] ] = NR } }
else if ( act == "3" ) {
funcname = tok
flines[ tok] = NR }
else if ( act == "4" )
braces++
else if ( act == "5" ) {
braces--
if ( braces == 0 ) {
for ( temp in local )
delete local[ temp]
funcname = ""
nextstate = 1 } }
else if ( act == "6" ) {
local[ tok] = 1 }
else if ( act == "7" )
break
else if ( act == "8" ) {
print "error: xref.awk: line " NR ": aborting" \
> "/dev/con"
# finished with current token
state = nextstate }
# finished parsing, now ready to print output
for ( i = 1 ; i <= nnames; i++ ) {
printf "%d " , xnames
[ names
[ i
] ] | "sort +1" if ( index( names[ i] , "(" ) == 0 )
printf "%s(%d)" , names
[ i
] , flines
[ names
[ i
] ] | "sort +1" else
printf "%s" , names
[ i
] | "sort +1" for ( j = 1 ; j <= xnames[ names[ i] ] ; j++ )
if ( lines[ names[ i] , j] != lines[ names[ i] , j- 1 ] )
printf " %d" , lines
[ names
[ i
] , j
] | "sort +1"
} # END OF PROGRAM
function asplit( str, arr, fs, n) { n = split( str, temp_asplit, fs)
for ( i = 1 ; i <= n; i++ ) arr[ temp_asplit[ i] ] ++ }
function inarray( val, arr, j) {
for ( j in arr )
if ( arr[ j] == val ) return j
return "" }
function lex( ) {
for ( ;; ) {
if ( tok == "(eof)" ) return 7
while ( length( line) == 0 )
if ( getline line == 0 ) {
tok = "(eof)" ; return 7 }
sub( /^ [ \t] +/, "" , line) # remove white space,
sub( /^ "([^" ] | \\")*" /, "" , line) # quoted strings,
sub( /^ \/ ( [ ^ \/ ] | \\\/ ) + \//,"",line) # regular expressions,
sub( /^ #.*/,"",line) # and comments
if ( line ~ /^ function/ ) {
tok = "function" ; line = substr( line, 9 ) ; return 1 }
else if ( line ~ /^ { / ) {
tok = "{" ; line = substr( line, 2 ) ; return 2 }
else if ( line ~ /^ } / ) {
tok = "}" ; line = substr( line, 2 ) ; return 3 }
else if ( match( line,/^ [ A- Za- z_] [ A- Za- z_0- 9 ] * \[ / ) ) {
tok = substr( line, 1 , RLENGTH- 1 )
line = substr( line, RLENGTH+ 1 )
return 5 }
else if ( match( line,/^ [ A- Za- z_] [ A- Za- z_0- 9 ] * \( / ) ) {
tok = substr( line, 1 , RLENGTH- 1 )
line = substr( line, RLENGTH+ 1 )
if ( ! ( tok in keywords ) ) return 6 }
else if ( match( line,/^ [ A- Za- z_] [ A- Za- z_0- 9 ] */ ) ) {
tok = substr( line, 1 , RLENGTH)
line = substr( line, RLENGTH+ 1 )
if ( ! ( tok in keywords ) ) return 4 }
else {
match( line,/^ [ ^ A- Za- z_{ } ] / )
tok = substr( line, 1 , RLENGTH)
line = substr( line, RLENGTH+ 1 ) } } }
        # xref.awk - cross reference an awk program

        BEGIN {

                # create array of keywords to be ignored by lexer
                asplit("BEGIN:END:atan2:break:close:continue:cos:delete:" \
                        "do:else:exit:exp:for:getline:gsub:if:in:index:int:"  \
                        "length:log:match:next:print:printf:rand:return:sin:" \
                        "split:sprintf:sqrt:srand:sub:substr:system:while",
                        keywords,":")

                # build the symbol-state table
                split("00:00:00:00:00:00:00:00:00:00:" \
                          "20:10:10:12:12:11:07:00:00:00:" \
                          "08:08:08:08:08:33:08:00:00:00:" \
                          "08:44:08:36:08:08:08:00:00:00:" \
                          "08:44:45:42:42:41:08",machine,":")

                # parse the input and store an intermediate representation
                # of the cross-reference information

                # set up the machine
                state = 1

                # run the machine
                for (;;) {

                        # get next symbol
                        symb = lex()
                        nextstate = substr(machine[state symb],1,1)
                        act = substr(machine[state symb],2,1)

                        # perform required action
                        if ( act == "0" )
                                ; # do nothing
                        else if ( act == "1" ) {
                                if ( ! inarray(tok,names) )
                                        names[++nnames] = tok
                                lines[tok,++xnames[tok]] = NR }
                        else if ( act == "2" ) {
                                if ( tok in local ) {
                                        tok = tok "(" funcname ")"
                                        if ( ! inarray(tok,names) )
                                                names[++nnames] = tok
                                        lines[tok,++xnames[tok]] = NR }
                                else {
                                        tok = tok "()"
                                        if ( ! inarray(tok,names) )
                                                names[++nnames] = tok
                                        lines[tok,++xnames[tok]] = NR } }
                        else if ( act == "3" ) {
                                funcname = tok
                                flines[tok] = NR }
                        else if ( act == "4" )
                                braces++
                        else if ( act == "5" ) {
                                braces--
                                if ( braces == 0 ) {
                                        for ( temp in local )
                                                delete local[temp]
                                        funcname = ""
                                        nextstate = 1 } }
                        else if ( act == "6" ) {
                                local[tok] = 1 }
                        else if ( act == "7" )
                                break
                        else if ( act == "8" ) {
                                print "error: xref.awk: line " NR ": aborting" \
                                        > "/dev/con"
                                exit 1 }

                        # finished with current token
                        state = nextstate }

                # finished parsing, now ready to print output
                for ( i = 1; i <= nnames; i++ ) {
                        printf "%d ", xnames[names[i]] |"sort +1"
                        if ( index(names[i],"(") == 0 )
                                printf "%s(%d)", names[i], flines[names[i]] |"sort +1"
                        else
                                printf "%s", names[i] |"sort +1"
                        for ( j = 1; j <= xnames[names[i]]; j++ )
                                if ( lines[names[i],j] != lines[names[i],j-1] )
                                        printf " %d", lines[names[i],j] |"sort +1"
                        printf "\n" |"sort +1" }

                } # END OF PROGRAM

        function asplit(str,arr,fs,  n) { n = split(str,temp_asplit,fs)
                for ( i = 1; i <= n; i++ ) arr[temp_asplit[i]]++ }

        function inarray(val,arr,  j) {
            for ( j in arr )
                if ( arr[j] == val ) return j
            return "" }

        function lex() {

                for (;;) {

                        if ( tok == "(eof)" ) return 7

                        while ( length(line) == 0 )
                                if ( getline line == 0 ) {
                                        tok = "(eof)"; return 7 }

                        sub(/^[ \t]+/,"",line)                                # remove white space,
                        sub(/^"([^"]|\\")*"/,"",line)                # quoted strings,
                        sub(/^\/([^\/]|\\\/)+\//,"",line)        # regular expressions,
                        sub(/^#.*/,"",line)                                        # and comments

                        if ( line ~ /^function/ ) {
                                tok = "function"; line = substr(line,9); return 1 }
                        else if ( line ~ /^{/ ) {
                                tok = "{"; line = substr(line,2); return 2 }
                        else if ( line ~ /^}/ ) {
                                tok = "}"; line = substr(line,2); return 3 }
                        else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*\[/) ) {
                                tok = substr(line,1,RLENGTH-1)
                                line = substr(line,RLENGTH+1)
                                return 5 }
                        else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*\(/) ) {
                                tok = substr(line,1,RLENGTH-1)
                                line = substr(line,RLENGTH+1)
                                if ( ! ( tok in keywords ) ) return 6 }
                        else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*/) ) {
                                tok = substr(line,1,RLENGTH)
                                line = substr(line,RLENGTH+1)
                                if ( ! ( tok in keywords ) ) return 4 }
                        else {
                                match(line,/^[^A-Za-z_{}]/)
                                tok = substr(line,1,RLENGTH)
                                line = substr(line,RLENGTH+1) } } }

stdin
        # xref.awk - cross reference an awk program

        BEGIN {

                # create array of keywords to be ignored by lexer
                asplit(&quot;BEGIN:END:atan2:break:close:continue:cos:delete:&quot; \
                        &quot;do:else:exit:exp:for:getline:gsub:if:in:index:int:&quot;  \
                        &quot;length:log:match:next:print:printf:rand:return:sin:&quot; \
                        &quot;split:sprintf:sqrt:srand:sub:substr:system:while&quot;,
                        keywords,&quot;:&quot;)

                # build the symbol-state table
                split(&quot;00:00:00:00:00:00:00:00:00:00:&quot; \
                          &quot;20:10:10:12:12:11:07:00:00:00:&quot; \
                          &quot;08:08:08:08:08:33:08:00:00:00:&quot; \
                          &quot;08:44:08:36:08:08:08:00:00:00:&quot; \
                          &quot;08:44:45:42:42:41:08&quot;,machine,&quot;:&quot;)

                # parse the input and store an intermediate representation
                # of the cross-reference information

                # set up the machine
                state = 1

                # run the machine
                for (;;) {

                        # get next symbol
                        symb = lex()
                        nextstate = substr(machine[state symb],1,1)
                        act = substr(machine[state symb],2,1)

                        # perform required action
                        if ( act == &quot;0&quot; )
                                ; # do nothing
                        else if ( act == &quot;1&quot; ) {
                                if ( ! inarray(tok,names) )
                                        names[++nnames] = tok
                                lines[tok,++xnames[tok]] = NR }
                        else if ( act == &quot;2&quot; ) {
                                if ( tok in local ) {
                                        tok = tok &quot;(&quot; funcname &quot;)&quot;
                                        if ( ! inarray(tok,names) )
                                                names[++nnames] = tok
                                        lines[tok,++xnames[tok]] = NR }
                                else {
                                        tok = tok &quot;()&quot;
                                        if ( ! inarray(tok,names) )
                                                names[++nnames] = tok
                                        lines[tok,++xnames[tok]] = NR } }
                        else if ( act == &quot;3&quot; ) {
                                funcname = tok
                                flines[tok] = NR }
                        else if ( act == &quot;4&quot; )
                                braces++
                        else if ( act == &quot;5&quot; ) {
                                braces--
                                if ( braces == 0 ) {
                                        for ( temp in local )
                                                delete local[temp]
                                        funcname = &quot;&quot;
                                        nextstate = 1 } }
                        else if ( act == &quot;6&quot; ) {
                                local[tok] = 1 }
                        else if ( act == &quot;7&quot; )
                                break
                        else if ( act == &quot;8&quot; ) {
                                print &quot;error: xref.awk: line &quot; NR &quot;: aborting&quot; \
                                        &gt; &quot;/dev/con&quot;
                                exit 1 }

                        # finished with current token
                        state = nextstate }

                # finished parsing, now ready to print output
                for ( i = 1; i &lt;= nnames; i++ ) {
                        printf &quot;%d &quot;, xnames[names[i]] |&quot;sort +1&quot;
                        if ( index(names[i],&quot;(&quot;) == 0 )
                                printf &quot;%s(%d)&quot;, names[i], flines[names[i]] |&quot;sort +1&quot;
                        else
                                printf &quot;%s&quot;, names[i] |&quot;sort +1&quot;
                        for ( j = 1; j &lt;= xnames[names[i]]; j++ )
                                if ( lines[names[i],j] != lines[names[i],j-1] )
                                        printf &quot; %d&quot;, lines[names[i],j] |&quot;sort +1&quot;
                        printf &quot;\n&quot; |&quot;sort +1&quot; }

                } # END OF PROGRAM

        function asplit(str,arr,fs,  n) { n = split(str,temp_asplit,fs)
                for ( i = 1; i &lt;= n; i++ ) arr[temp_asplit[i]]++ }

        function inarray(val,arr,  j) {
            for ( j in arr )
                if ( arr[j] == val ) return j
            return &quot;&quot; }

        function lex() {

                for (;;) {

                        if ( tok == &quot;(eof)&quot; ) return 7

                        while ( length(line) == 0 )
                                if ( getline line == 0 ) {
                                        tok = &quot;(eof)&quot;; return 7 }

                        sub(/^[ \t]+/,&quot;&quot;,line)                                # remove white space,
                        sub(/^&quot;([^&quot;]|\\&quot;)*&quot;/,&quot;&quot;,line)                # quoted strings,
                        sub(/^\/([^\/]|\\\/)+\//,&quot;&quot;,line)        # regular expressions,
                        sub(/^#.*/,&quot;&quot;,line)                                        # and comments

                        if ( line ~ /^function/ ) {
                                tok = &quot;function&quot;; line = substr(line,9); return 1 }
                        else if ( line ~ /^{/ ) {
                                tok = &quot;{&quot;; line = substr(line,2); return 2 }
                        else if ( line ~ /^}/ ) {
                                tok = &quot;}&quot;; line = substr(line,2); return 3 }
                        else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*\[/) ) {
                                tok = substr(line,1,RLENGTH-1)
                                line = substr(line,RLENGTH+1)
                                return 5 }
                        else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*\(/) ) {
                                tok = substr(line,1,RLENGTH-1)
                                line = substr(line,RLENGTH+1)
                                if ( ! ( tok in keywords ) ) return 6 }
                        else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*/) ) {
                                tok = substr(line,1,RLENGTH)
                                line = substr(line,RLENGTH+1)
                                if ( ! ( tok in keywords ) ) return 4 }
                        else {
                                match(line,/^[^A-Za-z_{}]/)
                                tok = substr(line,1,RLENGTH)
                                line = substr(line,RLENGTH+1) } } }

# xref.awk - cross reference an awk program
BEGIN {
# create array of keywords to be ignored by lexer
asplit("BEGIN:END:atan2:break:close:continue:cos:delete:" \
"do:else:exit:exp:for:getline:gsub:if:in:index:int:" \
"length:log:match:next:print:printf:rand:return:sin:" \
"split:sprintf:sqrt:srand:sub:substr:system:while",
keywords,":")
# build the symbol-state table
split("00:00:00:00:00:00:00:00:00:00:" \
"20:10:10:12:12:11:07:00:00:00:" \
"08:08:08:08:08:33:08:00:00:00:" \
"08:44:08:36:08:08:08:00:00:00:" \
"08:44:45:42:42:41:08",machine,":")
# parse the input and store an intermediate representation
# of the cross-reference information
# set up the machine
state = 1
# run the machine
for (;;) {
# get next symbol
symb = lex()
nextstate = substr(machine[state symb],1,1)
act = substr(machine[state symb],2,1)
# perform required action
if ( act == "0" )
; # do nothing
else if ( act == "1" ) {
if ( ! inarray(tok,names) )
names[++nnames] = tok
lines[tok,++xnames[tok]] = NR }
else if ( act == "2" ) {
if ( tok in local ) {
tok = tok "(" funcname ")"
if ( ! inarray(tok,names) )
names[++nnames] = tok
lines[tok,++xnames[tok]] = NR }
else {
tok = tok "()"
if ( ! inarray(tok,names) )
names[++nnames] = tok
lines[tok,++xnames[tok]] = NR } }
else if ( act == "3" ) {
funcname = tok
flines[tok] = NR }
else if ( act == "4" )
braces++
else if ( act == "5" ) {
braces--
if ( braces == 0 ) {
for ( temp in local )
delete local[temp]
funcname = ""
nextstate = 1 } }
else if ( act == "6" ) {
local[tok] = 1 }
else if ( act == "7" )
break
else if ( act == "8" ) {
print "error: xref.awk: line " NR ": aborting" \
> "/dev/con"
exit 1 }
# finished with current token
state = nextstate }
# finished parsing, now ready to print output
for ( i = 1; i <= nnames; i++ ) {
printf "%d ", xnames[names[i]] |"sort +1"
if ( index(names[i],"(") == 0 )
printf "%s(%d)", names[i], flines[names[i]] |"sort +1"
else
printf "%s", names[i] |"sort +1"
for ( j = 1; j <= xnames[names[i]]; j++ )
if ( lines[names[i],j] != lines[names[i],j-1] )
printf " %d", lines[names[i],j] |"sort +1"
printf "\n" |"sort +1" }
} # END OF PROGRAM
function asplit(str,arr,fs, n) { n = split(str,temp_asplit,fs)
for ( i = 1; i <= n; i++ ) arr[temp_asplit[i]]++ }
function inarray(val,arr, j) {
for ( j in arr )
if ( arr[j] == val ) return j
return "" }
function lex() {
for (;;) {
if ( tok == "(eof)" ) return 7
while ( length(line) == 0 )
if ( getline line == 0 ) {
tok = "(eof)"; return 7 }
sub(/^[ \t]+/,"",line) # remove white space,
sub(/^"([^"]|\\")*"/,"",line) # quoted strings,
sub(/^\/([^\/]|\\\/)+\//,"",line) # regular expressions,
sub(/^#.*/,"",line) # and comments
if ( line ~ /^function/ ) {
tok = "function"; line = substr(line,9); return 1 }
else if ( line ~ /^{/ ) {
tok = "{"; line = substr(line,2); return 2 }
else if ( line ~ /^}/ ) {
tok = "}"; line = substr(line,2); return 3 }
else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*\[/) ) {
tok = substr(line,1,RLENGTH-1)
line = substr(line,RLENGTH+1)
return 5 }
else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*\(/) ) {
tok = substr(line,1,RLENGTH-1)
line = substr(line,RLENGTH+1)
if ( ! ( tok in keywords ) ) return 6 }
else if ( match(line,/^[A-Za-z_][A-Za-z_0-9]*/) ) {
tok = substr(line,1,RLENGTH)
line = substr(line,RLENGTH+1)
if ( ! ( tok in keywords ) ) return 4 }
else {
match(line,/^[^A-Za-z_{}]/)
tok = substr(line,1,RLENGTH)
line = substr(line,RLENGTH+1) } } }