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authorAn-Cheng Huang <ancheng@vyatta.com>2007-09-25 15:55:26 -0700
committerAn-Cheng Huang <ancheng@vyatta.com>2007-09-25 15:55:26 -0700
commite9a79a249cec69fc178098d2f75db9389068510a (patch)
tree0e366094b7fecd3988c243fbbb574015e0c900c8 /src/cli_val.l
downloadvyatta-cfg-e9a79a249cec69fc178098d2f75db9389068510a.tar.gz
vyatta-cfg-e9a79a249cec69fc178098d2f75db9389068510a.zip
initial import (from eureka /cli) plus new build system.upstream
Diffstat (limited to 'src/cli_val.l')
-rw-r--r--src/cli_val.l293
1 files changed, 293 insertions, 0 deletions
diff --git a/src/cli_val.l b/src/cli_val.l
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+%{
+#include "cli_val.h"
+#include "cli_parse.h"
+#include "cli_objects.h"
+static void make_val_value(vtw_type_e type);
+#define YY_INPUT(buf,result,max_size) (result)=cli_val_read((buf), (max_size))
+%}
+%option noyywrap
+%option nounput
+%option never-interactive
+
+/*
+ * Regular expressions of IP and MAC addresses, URLs, etc.
+ */
+
+/*
+ * IPv4 address representation.
+ */
+RE_IPV4_BYTE 25[0-5]|2[0-4][0-9]|[01][0-9][0-9]|([0-9]{1,2})
+RE_IPV4 {RE_IPV4_BYTE}(\.{RE_IPV4_BYTE}){3}
+RE_IPV4_PREFIXLEN (3[012]|[12][0-9]|[0-9])
+RE_IPV4NET {RE_IPV4}"/"{RE_IPV4_PREFIXLEN}
+
+/*
+ * IPv6 address representation in Augmented Backus-Naur Form (ABNF)
+ * as defined in RFC-2234.
+ * IPv6 address representation taken from RFC-3986:
+ *
+ * IPv6address = 6( h16 ":" ) ls32
+ * / "::" 5( h16 ":" ) ls32
+ * / [ h16 ] "::" 4( h16 ":" ) ls32
+ * / [ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
+ * / [ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
+ * / [ *3( h16 ":" ) h16 ] "::" h16 ":" ls32
+ * / [ *4( h16 ":" ) h16 ] "::" ls32
+ * / [ *5( h16 ":" ) h16 ] "::" h16
+ * / [ *6( h16 ":" ) h16 ] "::"
+ *
+ * h16 = 1*4HEXDIG
+ * ls32 = ( h16 ":" h16 ) / IPv4address
+ * IPv4address = dec-octet "." dec-octet "." dec-octet "." dec-octet
+ * dec-octet = DIGIT ; 0-9
+ * / %x31-39 DIGIT ; 10-99
+ * / "1" 2DIGIT ; 100-199
+ * / "2" %x30-34 DIGIT ; 200-249
+ * / "25" %x30-35 ; 250-255
+ */
+
+RE_H16 [a-fA-F0-9]{1,4}
+RE_H16_COLON {RE_H16}":"
+RE_LS32 (({RE_H16}":"{RE_H16})|{RE_IPV4})
+RE_IPV6_P1 {RE_H16_COLON}{6}{RE_LS32}
+RE_IPV6_P2 "::"{RE_H16_COLON}{5}{RE_LS32}
+RE_IPV6_P3 ({RE_H16})?"::"{RE_H16_COLON}{4}{RE_LS32}
+RE_IPV6_P4 ({RE_H16_COLON}{0,1}{RE_H16})?"::"{RE_H16_COLON}{3}{RE_LS32}
+RE_IPV6_P5 ({RE_H16_COLON}{0,2}{RE_H16})?"::"{RE_H16_COLON}{2}{RE_LS32}
+RE_IPV6_P6 ({RE_H16_COLON}{0,3}{RE_H16})?"::"{RE_H16_COLON}{1}{RE_LS32}
+RE_IPV6_P7 ({RE_H16_COLON}{0,4}{RE_H16})?"::"{RE_LS32}
+RE_IPV6_P8 ({RE_H16_COLON}{0,5}{RE_H16})?"::"{RE_H16}
+RE_IPV6_P9 ({RE_H16_COLON}{0,6}{RE_H16})?"::"
+RE_IPV6 {RE_IPV6_P1}|{RE_IPV6_P2}|{RE_IPV6_P3}|{RE_IPV6_P4}|{RE_IPV6_P5}|{RE_IPV6_P6}|{RE_IPV6_P7}|{RE_IPV6_P8}|{RE_IPV6_P9}
+RE_IPV6_PREFIXLEN 12[0-8]|1[01][0-9]|[0-9][0-9]?
+RE_IPV6NET {RE_IPV6}"/"{RE_IPV6_PREFIXLEN}
+
+/*
+ * Ethernet MAC address representation.
+ */
+RE_MACADDR [a-fA-F0-9]{1,2}(:[a-fA-F0-9]{1,2}){5}
+
+/*
+ * URL-related regular expressions.
+ *
+ * Implementation is based on the BNF-like specification from:
+ * - RFC-1738: HTTP, FTP, FILE
+ * - RFC-3617: TFTP
+ * - RFC-3986: update of RFC-1738
+ */
+RE_URL {RE_URL_FILE}|{RE_URL_FTP}|{RE_URL_HTTP}|{RE_URL_TFTP}
+
+/*
+ * URL schemeparts for IP based protocols.
+ * Representation taken from RFC-1738, and some of it is updated by RFC-3986.
+ *
+ * login = [ user [ ":" password ] "@" ] hostport
+ * hostport = host [ ":" port ]
+ * host = hostname | hostnumber
+ * hostname = *[ domainlabel "." ] toplabel
+ * domainlabel = alphadigit | alphadigit *[ alphadigit | "-" ] alphadigit
+ * toplabel = alpha | alpha *[ alphadigit | "-" ] alphadigit
+ * alphadigit = alpha | digit
+ * hostnumber = digits "." digits "." digits "." digits
+ * port = digits
+ * user = *[ uchar | ";" | "?" | "&" | "=" ]
+ * password = *[ uchar | ";" | "?" | "&" | "=" ]
+ */
+RE_URL_LOGIN ({RE_URL_USER}(":"{RE_URL_PASSWORD})?"@")?{RE_URL_HOSTPORT}
+RE_URL_HOSTPORT {RE_URL_HOST}(":"{RE_URL_PORT})?
+RE_URL_HOST {RE_URL_HOSTNAME}|{RE_IPV4}|{RE_URL_IP_LITERAL}
+RE_URL_IP_LITERAL "["({RE_IPV6}|{RE_URL_IPV_FUTURE})"]"
+RE_URL_IPV_FUTURE "v"({RE_URL_HEXDIG})+"."({RE_URL_UNRESERVED}|{RE_URL_SUBDELIMS}|":")+
+RE_URL_HOSTNAME ({RE_URL_DOMAINLABEL}".")*{RE_URL_TOPLABEL}
+RE_URL_DOMAINLABEL {RE_URL_ALPHADIGIT}|{RE_URL_ALPHADIGIT}({RE_URL_ALPHADIGIT}|"-")*{RE_URL_ALPHADIGIT}
+RE_URL_TOPLABEL {RE_URL_ALPHA}|{RE_URL_ALPHA}({RE_URL_ALPHADIGIT}|"-")*{RE_URL_ALPHADIGIT}
+RE_URL_ALPHADIGIT {RE_URL_ALPHA}|{RE_URL_DIGIT}
+RE_URL_HOSTNUMBER {RE_URL_DIGITS}"."{RE_URL_DIGITS}"."{RE_URL_DIGITS}"."{RE_URL_DIGITS}
+RE_URL_PORT {RE_URL_DIGITS}
+RE_URL_USER ({RE_URL_UCHAR}|";"|"?"|"&"|"=")*
+RE_URL_PASSWORD ({RE_URL_UCHAR}|";"|"?"|"&"|"=")*
+
+/*
+ * FILE URL regular expression.
+ * Representation taken from RFC-1738.
+ *
+ * fileurl = "file://" [ host | "localhost" ] "/" fpath
+ */
+RE_URL_FILE "file://"({RE_URL_HOST}|"localhost")?"/"{RE_URL_FPATH}
+
+/*
+ * FTP URL regular expression.
+ * Representation taken from RFC-1738.
+ *
+ * ftpurl = "ftp://" login [ "/" fpath [ ";type=" ftptype ] ]
+ * fpath = fsegment *[ "/" fsegment ]
+ * fsegment = *[ uchar | "?" | ":" | "@" | "&" | "=" ]
+ * ftptype = "A" | "I" | "D" | "a" | "i" | "d"
+ */
+RE_URL_FTP "ftp://"{RE_URL_LOGIN}("/"{RE_URL_FPATH}(";type="{RE_URL_FTPTYPE})?)?
+RE_URL_FPATH {RE_URL_FSEGMENT}("/"{RE_URL_FSEGMENT})*
+RE_URL_FSEGMENT ({RE_URL_UCHAR}|"?"|":"|"@"|"&"|"=")*
+RE_URL_FTPTYPE "A"|"I"|"D"|"a"|"i"|"d"
+
+/*
+ * HTTP URL regular expression.
+ * Representation taken from RFC-1738.
+ *
+ * httpurl = "http://" hostport [ "/" hpath [ "?" search ] ]
+ * hpath = hsegment *[ "/" hsegment ]
+ * hsegment = *[ uchar | ";" | ":" | "@" | "&" | "=" ]
+ * search = *[ uchar | ";" | ":" | "@" | "&" | "=" ]
+ */
+RE_URL_HTTP "http://"{RE_URL_HOSTPORT}("/"{RE_URL_HPATH}("?"{RE_URL_SEARCH})?)?
+RE_URL_HPATH {RE_URL_HSEGMENT}("/"{RE_URL_HSEGMENT})*
+RE_URL_HSEGMENT ({RE_URL_UCHAR}|";"|":"|"@"|"&"|"=")*
+RE_URL_SEARCH ({RE_URL_UCHAR}|";"|":"|"@"|"&"|"=")*
+
+/*
+ * TFTP URL regular expression.
+ * Representation taken from RFC-3617.
+ *
+ * tftpURI = "tftp://" host "/" file [ mode ]
+ * mode = ";" "mode=" ( "netascii" / "octet" )
+ * file = *( unreserved / escaped )
+ * host = <as specified by RFC 2732 [3]>
+ * unreserved = <as specified in RFC 2396 [4]>
+ * escaped = <as specified in RFC 2396>
+ */
+RE_URL_TFTP "tftp://"{RE_URL_HOST}"/"{RE_URL_TFTP_FILE}({RE_URL_TFTP_MODE})?
+RE_URL_TFTP_MODE ";""mode="("netascii"|"octet")
+RE_URL_TFTP_FILE ({RE_URL_UNRESERVED}|{RE_URL_ESCAPE})*
+
+/*
+ * URL-related miscellaneous definitions.
+ * Representation taken from RFC-1738 and from RFC-3986.
+ *
+ * lowalpha = "a" | "b" | "c" | "d" | "e" | "f" | "g" | "h" |
+ * "i" | "j" | "k" | "l" | "m" | "n" | "o" | "p" |
+ * "q" | "r" | "s" | "t" | "u" | "v" | "w" | "x" |
+ * "y" | "z"
+ * hialpha = "A" | "B" | "C" | "D" | "E" | "F" | "G" | "H" | "I" |
+ * "J" | "K" | "L" | "M" | "N" | "O" | "P" | "Q" | "R" |
+ * "S" | "T" | "U" | "V" | "W" | "X" | "Y" | "Z"
+ * alpha = lowalpha | hialpha
+ * digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" |
+ * "8" | "9"
+ * safe = "$" | "-" | "_" | "." | "+"
+ * extra = "!" | "*" | "'" | "(" | ")" | ","
+ * national = "{" | "}" | "|" | "\" | "^" | "~" | "[" | "]" | "`"
+ * punctuation = "<" | ">" | "#" | "%" | <">
+ *
+ *
+ * reserved = ";" | "/" | "?" | ":" | "@" | "&" | "="
+ * hex = digit | "A" | "B" | "C" | "D" | "E" | "F" |
+ * "a" | "b" | "c" | "d" | "e" | "f"
+ * escape = "%" hex hex
+ *
+ * unreserved = alpha | digit | safe | extra
+ * uchar = unreserved | escape
+ * xchar = unreserved | reserved | escape
+ * digits = 1*digit
+ *
+ * sub-delims = "!" / "$" / "&" / "'" / "(" / ")"
+ * / "*" / "+" / "," / ";" / "="
+ */
+RE_URL_LOWALPHA [a-z]
+RE_URL_HIALPHA [A-Z]
+RE_URL_ALPHA {RE_URL_LOWALPHA}|{RE_URL_HIALPHA}
+RE_URL_DIGIT [0-9]
+RE_URL_SAFE "$"|"-"|"_"|"."|"+"
+RE_URL_EXTRA "!"|"*"|"'"|"("|")"|","
+RE_URL_NATIONAL "{"|"}"|"|"|"\"|"^"|"~"|"["|"]"|"`"
+RE_URL_PUNCTUATION "<"|">"|"#"|"%"|<">
+RE_URL_RESERVED ";"|"/"|"?"|":"|"@"|"&"|"="
+RE_URL_HEXDIG {RE_URL_DIGIT}|[A-F]|[a-f]
+RE_URL_ESCAPE "%"{RE_URL_HEXDIG}{RE_URL_HEXDIG}
+RE_URL_UNRESERVED {RE_URL_ALPHA}|{RE_URL_DIGIT}|{RE_URL_SAFE}|{RE_URL_EXTRA}
+RE_URL_UCHAR {RE_URL_UNRESERVED}|{RE_URL_ESCAPE}
+RE_URL_XCHAR {RE_URL_UNRESERVED}|{RE_URL_RESERVED}|{RE_URL_ESCAPE}
+RE_URL_DIGITS {RE_URL_DIGIT}{1,}
+RE_URL_SUBDELIMS "!"|"$"|"&"|"'"|"("|")"|"*"|"+"|","|";"|"="
+
+
+%%
+:: {
+ make_val_value(IPV6_TYPE);
+ return VALUE;
+ }
+
+true {
+ make_val_value(BOOL_TYPE);
+ return VALUE;
+ }
+
+false {
+ make_val_value(BOOL_TYPE);
+ return VALUE;
+ }
+
+[0-9]+ {
+ make_val_value(INT_TYPE);
+ return VALUE;
+ }
+
+{RE_IPV4} {
+ make_val_value(IPV4_TYPE);
+ return VALUE;
+ }
+
+{RE_IPV4NET} {
+ make_val_value(IPV4NET_TYPE);
+ return VALUE;
+ }
+
+{RE_IPV6} {
+ make_val_value(IPV6_TYPE);
+ return VALUE;
+ }
+
+{RE_IPV6NET} {
+ make_val_value(IPV6NET_TYPE);
+ return VALUE;
+ }
+
+{RE_MACADDR} {
+ make_val_value(MACADDR_TYPE);
+ return VALUE;
+ }
+
+\\\n /* whitespace */
+
+[ \t]+ /*whitespace */
+\n return EOL;
+. {
+ /* everything else is a syntax error */
+ return SYNTAX_ERROR;
+ }
+
+
+%%
+static void make_val_value(vtw_type_e type)
+{
+ memset(get_cli_value_ptr(), 0, sizeof(valstruct));
+ get_cli_value_ptr()->free_me = TRUE;
+ get_cli_value_ptr()->val = my_strdup(yytext, "cli_val.l");
+ get_cli_value_ptr()->val_type = type;
+}
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