summaryrefslogtreecommitdiffstats
path: root/contrib/tzdata/checktab.awk
blob: 2397673e92a9eeadddb065b95a56d1a616459645 (plain)
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
# Check tz tables for consistency.

# Contributed by Paul Eggert.  This file is in the public domain.

BEGIN {
	FS = "\t"

	if (!iso_table) iso_table = "iso3166.tab"
	if (!zone_table) zone_table = "zone1970.tab"
	if (!want_warnings) want_warnings = -1

	while (getline <iso_table) {
		iso_NR++
		if ($0 ~ /^#/) continue
		if (NF != 2) {
			printf "%s:%d: wrong number of columns\n", \
				iso_table, iso_NR >>"/dev/stderr"
			status = 1
		}
		cc = $1
		name = $2
		if (cc !~ /^[A-Z][A-Z]$/) {
			printf "%s:%d: invalid country code '%s'\n", \
				iso_table, iso_NR, cc >>"/dev/stderr"
			status = 1
		}
		if (cc <= cc0) {
			if (cc == cc0) {
				s = "duplicate";
			} else {
				s = "out of order";
			}

			printf "%s:%d: country code '%s' is %s\n", \
				iso_table, iso_NR, cc, s \
				>>"/dev/stderr"
			status = 1
		}
		cc0 = cc
		if (name2cc[name]) {
			printf "%s:%d: '%s' and '%s' have the same name\n", \
				iso_table, iso_NR, name2cc[name], cc \
				>>"/dev/stderr"
			status = 1
		}
		name2cc[name] = cc
		cc2name[cc] = name
		cc2NR[cc] = iso_NR
	}

	cc0 = ""

	while (getline <zone_table) {
		zone_NR++
		if ($0 ~ /^#/) continue
		if (NF != 3 && NF != 4) {
			printf "%s:%d: wrong number of columns\n", \
				zone_table, zone_NR >>"/dev/stderr"
			status = 1
		}
		split($1, cca, /,/)
		cc = cca[1]
		coordinates = $2
		tz = $3
		comments = $4
		if (cc < cc0) {
			printf "%s:%d: country code '%s' is out of order\n", \
				zone_table, zone_NR, cc >>"/dev/stderr"
			status = 1
		}
		cc0 = cc
		tztab[tz] = 1
		tz2comments[tz] = comments
		tz2NR[tz] = zone_NR
		for (i in cca) {
		    cc = cca[i]
		    cctz = cc tz
		    cctztab[cctz] = 1
		    if (cc2name[cc]) {
			cc_used[cc]++
		    } else {
			printf "%s:%d: %s: unknown country code\n", \
				zone_table, zone_NR, cc >>"/dev/stderr"
			status = 1
		    }
		}
		if (coordinates !~ /^[-+][0-9][0-9][0-5][0-9][-+][01][0-9][0-9][0-5][0-9]$/ \
		    && coordinates !~ /^[-+][0-9][0-9][0-5][0-9][0-5][0-9][-+][01][0-9][0-9][0-5][0-9][0-5][0-9]$/) {
			printf "%s:%d: %s: invalid coordinates\n", \
				zone_table, zone_NR, coordinates >>"/dev/stderr"
			status = 1
		}
	}

	for (cctz in cctztab) {
		cc = substr (cctz, 1, 2)
		tz = substr (cctz, 3)
		if (1 < cc_used[cc]) {
			comments_needed[tz] = cc
		}
	}
	for (cctz in cctztab) {
	  cc = substr (cctz, 1, 2)
	  tz = substr (cctz, 3)
	  if (!comments_needed[tz] && tz2comments[tz]) {
	    printf "%s:%d: unnecessary comment '%s'\n", \
		zone_table, tz2NR[tz], tz2comments[tz] \
		>>"/dev/stderr"
	    tz2comments[tz] = 0
	    status = 1
	  } else if (comments_needed[tz] && !tz2comments[tz]) {
	    printf "%s:%d: missing comment for %s\n", \
	      zone_table, tz2NR[tz], comments_needed[tz] \
	      >>"/dev/stderr"
	    tz2comments[tz] = 1
	    status = 1
	  }
	}
	FS = " "
}

$1 ~ /^#/ { next }

{
	tz = rules = ""
	if ($1 == "Zone") {
		tz = $2
		ruleUsed[$4] = 1
	} else if ($1 == "Link" && zone_table == "zone.tab") {
		# Ignore Link commands if source and destination basenames
		# are identical, e.g. Europe/Istanbul versus Asia/Istanbul.
		src = $2
		dst = $3
		while ((i = index(src, "/"))) src = substr(src, i+1)
		while ((i = index(dst, "/"))) dst = substr(dst, i+1)
		if (src != dst) tz = $3
	} else if ($1 == "Rule") {
		ruleDefined[$2] = 1
	} else {
		ruleUsed[$2] = 1
	}
	if (tz && tz ~ /\//) {
		if (!tztab[tz]) {
			printf "%s: no data for '%s'\n", zone_table, tz \
				>>"/dev/stderr"
			status = 1
		}
		zoneSeen[tz] = 1
	}
}

END {
	for (tz in ruleDefined) {
		if (!ruleUsed[tz]) {
			printf "%s: Rule never used\n", tz
			status = 1
		}
	}
	for (tz in tztab) {
		if (!zoneSeen[tz]) {
			printf "%s:%d: no Zone table for '%s'\n", \
				zone_table, tz2NR[tz], tz >>"/dev/stderr"
			status = 1
		}
	}
	if (0 < want_warnings) {
		for (cc in cc2name) {
			if (!cc_used[cc]) {
				printf "%s:%d: warning: " \
					"no Zone entries for %s (%s)\n", \
					iso_table, cc2NR[cc], cc, cc2name[cc]
			}
		}
	}

	exit status
}
OpenPOWER on IntegriCloud