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2020-01-01
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106 lines
#!/usr/local/bin/wermit +
#
# THE FIRST LINE SHOULD INDICATE THE ACTUAL PATH OF C-KERMIT 9.0
# and the script should be given execute permission.
#
# Usage: weblog filename
#
# Reads TSV-format web log for a bilingual English-Spanish website.
# Extracts all Google searches.
# Converts the coded search string into plain text.
# If charset of search string is declared, converts it to ISO-8859-1.
# If charset is not declared, it is tested for UTF-8 and converted.
# Normalized search strings are tabulated using associative arrays.
#
# Illustrates:
# . new \fsplit behavior - CK9.0
# . new \fsqueeze() function
# . message and if debug commands - New in CK9.0 Alpha.03
# . decodehex function - New in CK9.0 Alpha.05
# . stringtype function - New in CK9.0 Alpha.05
# . use of MIME charset names - New in CK9.0 Alpha.05
# . associative arrays (not new but little known)
#
# Frank da Cruz, Columbia University, April 2010
if not def \%1 exit 1 "usage: weblog logfilename"
fopen /read \%i \fcontents(\%1)
if fail exit 1
.lines = 0
.google = 0
if def \$(DEBUG) set debug message on # To print debugging messages
while true {
fread /line \%i line # Read a record
if fail break # End of file
incr lines # Have record - count it
void \fsplit(\m(line),&a,\9,ALL,,1) # Split it into fields
if not \findex(.html,\&a[5]) continue # Reject all non-HTML accesses
.isgoogle := \findex(.google.,\&a[8]) # Reject all non-Google accesses
if not isgoogle continue
increment google # Have a Google HTML record
void \fsplit(\&a[8],&b,&?,ALL,,1) # Split it into 'clauses'
if debug show array b
undef charset string # Clear result variables
for i 1 \fdim(&b) 1 { # Loop through clauses
void \fsplit(\&b[i],&c,=,ALL) # Split clause into ID and value
if equ "\&c[1]" "q" .string := \&c[2] # Query string
else if equ "\&c[1]" "ie" .charset := \&c[2] # Character set
}
if not def string continue # No string - skip this record
if debug show mac charset string
# Normalize the string....
.string := \fsqueeze(\flower(\fdecodehex(\freplace(\m(string),+,\32))))
if debug show mac string
if def charset {
_increment cset<\fupper(\m(charset))>
if debug echo "CONVERTING [\m(string)] \m(charset)->ISO-8859-1"
.string := \fcvtcset(\m(string),\m(charset),iso-8859-1)
if debug show mac string
} else if equal "\fstringtype(\m(string))" "UTF8" {
.string := \fcvtcset(\m(string),UTF-8,iso-8859-1)
if debug show mac string
_increment cset<UNDECLARED_UTF-8_DETECTED>
} else {
_increment cset<UNDECLARED>
}
.string := \fsubstitute(\m(string),┴╔═╙┌▄╤,ßΘφ≤·ⁿ±)
.string := \freplace(\m(string),espanol,espa±ol)
.string := \freplace(\m(string),ingles,inglΘs)
_increment search<\m(string)>
}
# Finished - Display statistics
echo
echo "Records: \flpad(\m(lines),8)"
echo "Google: \flpad(\m(google),8)"
.n := \faaconvert(search,&a,&b)
echo "Unique: \flpad(\m(n),8)"
.m := \faaconvert(cset,&c,&d)
echo "Charsets: \flpad(\m(m),8)"
echo
echo Charsets by frequency...
array sort /reverse /numeric &d &c
for i 1 m 1 {
echo \flpad(\m(i),3). \flpad([\&d[i]],8) \&c[i]
}
if > n 20 .n = 20
echo
echo Top \m(n) searches by frequency...
array sort /reverse /numeric &b &a
for i 1 n 1 {
echo \flpad(\m(i),3). \flpad([\&b[i]],8) \&a[i]
}
exit 0
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; comment-column:40
; comment-start:"# "
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