/usr/share/gcal/ct2gcal.awk is in gcal-common 3.6.1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 | # $Id: ct2gcal.awk 0.20 2000/06/14 00:02:00 tom Exp $
#
# ct2gcal.awk: Very simple, slow and silly AWK script for converting
# "[X]Calentool-2.3" appointments into the `gcal' format.
#
#
# Copyright (c) 1994, 95, 1996, 2000 Thomas Esken <esken@gmx.net>
# Im Hagenfeld 84
# D-48147 M"unster
# GERMANY
#
# This software doesn't claim completeness, correctness or usability.
# On principle I will not be liable for ANY damages or losses (implicit
# or explicit), which result from using or handling my software.
# If you use this software, you agree without any exception to this
# agreement, which binds you LEGALLY !!
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the `GNU General Public License' as published by
# the `Free Software Foundation'; either version 2, or (at your option)
# any later version.
#
# You should have received a copy of the `GNU General Public License'
# along with this program; if not, write to the:
#
#
#
BEGIN {
#
# Define the field separator used (blank actually).
#
FS = " "
#
# Define the length of the text displayed on a line.
# This is a minimum value suggesting where the first position of a
# break can take place. If this happens within a word, the break
# is done at its end.
# Set `linebreak' to 0 if you don't want to break the text explicitly
# (this is the same mode which was done by former versions of this script).
#
linebreak = 0
#
# Print some leading comment text
#
print "; ct2gcal.awk output for Gcal-2.20 or newer"
print ";"
print "; Absolutely NO warrenty!"
print ";"
print ";"
#
# Maximum length of a gcal year yyyy (actually 4 places), month `mm',
# day `dd' and `n' field.
#
ylen = 4
mlen = 2
dlen = 2
nlen = 1
#
# Maximum lenght of a repeated text
# means a maximum number of repetitions of 999.
#
rlen = 3
#
# The newline character of a text part of a gcal resource file line.
#
gcalnl = "~"
#
# The quote character of a text part of a gcal resource file line.
#
gcalqt = "\\"
#
# The remark character of a text part of a gcal resource file line.
#
gcalremark = ";"
#
# The `text' of a typical calentool appointment starts in column 19.
#
ctcolumn = 19
#
# The remark character sequence of a calentool appointment line.
#
ctremark = "# "
#
# The character sequence which indicates an eternal date field
# of a calentool appointment line
#
cteternal = "**"
}
#
# Main block.
#
{
#
# Test if line is a comment.
#
if (substr($0, 1, 1) == substr(ctremark, 1, 1))
{
#
# First comment char found, check whether line contains a "#include" statement.
#
len = length($0)
if (len > 1)
ch = substr($0, 2, 1)
else
ch = ""
if (ch == substr(ctremark, 2, 1) || ch == "")
print gcalremark $0
else
print $0
}
else
{
#
# We better work with buffer of first three fields of the line
# (gawk-2.15.6 fails if we don't work in such way).
#
f1 = $1
f2 = $2
f3 = $3
#
# On conversion we must calculate with some displacement.
#
displ = 0
#
# No comment, so try to convert...
#
if ($0 != "")
{
#
# Test whether line contains an explictit gcal newline character ~
# if it is found, quote it by the gcal quote character \
# i.e. generate character sequence \~ .
#
tmpstr = ""
len = length($0)
for (i=1; i <= len; i++)
{
ch = substr($0, i, 1)
if (ch == gcalnl)
tmpstr = tmpstr gcalqt
tmpstr = tmpstr ch
}
$0 = tmpstr
#
# Add "inclusive_date" special text %iyyyy[mm[dd[n]]] (variable "idatetxt")
# in case a "... yyyy)" text fragment is found in line.
#
idatetxt = ""
#
if ($0 ~ /[0-9]+\)/)
{
#
# Pattern found, so search all fields for information.
#
for (i=1; i <= NF; i++)
{
#
# Extract the year number.
#
if ($i ~ /[0-9]+\)/)
{
#
# "tmpstr = substr($i, /[0-9]+\)/)" fails on some AWK implementations,
# so we must emulate that function by a loop ;((
#
len = length($i)
for (j=1; j <= len; j++)
{
if (substr($i, j, 1) ~ /[0-9]/)
len = j
}
tmpstr = substr($i, len, length($i))
#
# Ok, lets go on...
#
len = length(tmpstr)
for (j=1; j <= len; j++)
{
ch = substr(tmpstr, j, 1)
if (ch ~ /[0-9]/)
idatetxt = idatetxt ch
}
#
# Add leading zeroes to the year until length(year)==ylen.
#
len = length(idatetxt)
if (len < ylen)
{
tmpstr = ""
len = ylen - len
for (j=1; j <= len; j++)
tmpstr = "0" tmpstr
idatetxt = tmpstr idatetxt
}
#
# Add month and day to "idatetxt".
#
if (f2 != cteternal)
{
idatetxt = idatetxt f2
if (f3 != cteternal)
idatetxt = idatetxt f3
}
#
# Cut "idatetxt" so it contains ylen+mlen+dlen characters maximum.
#
len = length(idatetxt)
if (len > ylen+mlen+dlen)
idatetxt = substr(idatetxt, len-(ylen+mlen+dlen-1), ylen+mlen+dlen)
}
}
}
#
# Test if line contains a textual "[number]" field which
# indicates a date, that occurs at [number]'th weekday of month.
#
ntxt = ""
loopto = NF
#
if (f3 !~ /[0-9]/)
{
if ($0 ~ /\[+[012345lL]+\]/)
{
for (i=1; i <= loopto; i++)
{
if ($i ~ /\[+[012345lL]+\]/)
{
#
# Pattern found, so terminate loop.
#
loopto = i
#
# Extract the information.
#
# "tmpstr = substr($i, /\[+[012345lL]+\]/)" fails on some AWK implementations,
# so we must emulate that function by a loop ;((
#
len = length($i)
for (j=1; j <= len; j++)
{
if (substr($i, j, 1) ~ /[012345lL]/)
len = j
}
tmpstr = substr($i, len, length($i))
#
# Ok, lets go on...
#
len = length(tmpstr)
for (j=1; j <= len; j++)
{
ch = substr(tmpstr, j, 1)
if (ch ~ /[012345lL]/)
ntxt = ntxt ch
}
#
# Cut "ntxt" so it contains "nlen" characters maximum.
#
if (length(ntxt) > nlen)
ntxt = substr(ntxt, 1, nlen)
#
# Replace l|L(==last weekday in month) entry by a `9'.
#
if (ntxt ~ /[lL]/)
ntxt = "9"
#
# Append found number text to starting date special text.
#
if (idatetxt != "")
idatetxt = idatetxt ntxt
#
# Eliminate the found "[number]" field.
#
displ += (length($i) + 1)
}
}
}
}
#
# Test if line contains a textual "<number>" field and eliminate it.
#
rtxt = ""
loopto = NF
#
if ($0 ~ /<+[0-9]+>/)
{
for (i=1; i <= loopto; i++)
{
if ($i ~ /<+[0-9]+>/)
{
#
# Pattern found, so terminate loop.
#
loopto = i
#
# Extract the information.
#
# "tmpstr = substr($i, /<+[0-9]+>/)" fails on some AWK implementations,
# so we must emulate that function by a loop ;((
#
len = length($i)
for (j=1; j <= len; j++)
{
if (substr($i, j, 1) ~ /[0-9]/)
len = j
}
tmpstr = substr($i, len, length($i))
#
# Ok, lets go on...
#
len = length(tmpstr)
for (j=1; j <= len; j++)
{
ch = substr(tmpstr, j, 1)
if (ch ~ /[0-9]/)
rtxt = rtxt ch
}
#
# Cut "rtxt" so it contains "rlen" characters maximum.
#
if (length(rtxt) > rlen)
rtxt = substr(rtxt, 1, rlen)
#
# Eliminate the information.
#
displ += (length($i) + 1)
}
}
}
#
# Append "idatetxt" to line.
#
if (idatetxt == "")
line = $0
else
line = $0 "%i" idatetxt
if (f2 == cteternal)
f2 = "00"
if (f3 == cteternal)
f3 = "00"
#
# Manage possible breaks in the text part of appointment.
#
if (linebreak < 1)
textpart = substr(line, ctcolumn+displ)
else
{
tpart = substr(line, ctcolumn+displ)
len_tpart = length(tpart)
if (len_tpart > linebreak)
{
k = 0
textpart = ""
for (i=1 ; i <= len_tpart ; i += (linebreak+k))
{
textpart = textpart substr(tpart, i, linebreak-1)
j = 0
k = 0
while (substr(tpart, linebreak+i+j-1, 1) !~ /[ \t]/)
{
textpart = textpart substr(tpart, linebreak+i+j-1, 1)
j++
if (linebreak + i + j - 1 > len_tpart)
break
}
k += j
textpart = textpart gcalnl
}
}
else
textpart = tpart
i = length(textpart)
if (substr(textpart, i, 1) == gcalnl)
textpart = substr(textpart, 1, i-1)
}
if (rtxt != "")
{
#
# If "rtxt" is given, produce the line "rtxt" times using a date variable.
#
print "a=" f2 f3 ntxt
j = int(rtxt)
#
# Print line(s) only if repetition factor is 1 or more.
#
if (j > 0)
{
for (i=1; i <= j; i++)
{
if (f1 != cteternal)
print "19" f1 "@a" i-1 " " textpart
else
print "0@a" i-1 " " textpart
}
}
}
else
{
#
# Print the constructed line.
#
if (f1 != cteternal)
print "19" f1 f2 f3 ntxt " " textpart
else
print "0000" f2 f3 ntxt " " textpart
}
}
}
}
|