Qore Util Module Reference 1.10
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Util.qm.dox.h
1// -*- mode: c++; indent-tabs-mode: nil -*-
3
4/* Util.qm Copyright 2014 - 2023 Qore Technologies, s.r.o.
5
6 Permission is hereby granted, free of charge, to any person obtaining a
7 copy of this software and associated documentation files (the "Software"),
8 to deal in the Software without restriction, including without limitation
9 the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 and/or sell copies of the Software, and to permit persons to whom the
11 Software is furnished to do so, subject to the following conditions:
12
13 The above copyright notice and this permission notice shall be included in
14 all copies or substantial portions of the Software.
15
16 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
21 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 DEALINGS IN THE SOFTWARE.
23*/
24
25// minimum Qore version
26
27// do not use $ for vars, assume local var scope
28
29// require type definitions everywhere
30
31// enable all warnings
32
33}
34
177namespace Init {
178 init();
179
180};
181
183namespace Util {
185
187 public hashdecl UriQueryInfo {
189 string method;
190
192 *hash<auto> params;
193
195
197 *hash<auto> path_params;
198 };
199
201
218 int parse_memory_size(string str, *bool use_binary);
219
220
222
235 int compare_version(string lv, string rv);
236
237
239
257 string normalize_dir(string path, string cwd = getcwd());
258
259
261
276 string normalize_dir_unix(string path, string cwd = getcwd());
277
278
280
295 string normalize_dir_windows(string path, string cwd = getcwd());
296
297
299
312 string get_relative_path(string basedir, string path, string cwd = getcwd());
313
314
316
329 bool absolute_path(string path);
330
331
333
346 bool absolute_path_unix(string path);
347
348
350
363 bool absolute_path_windows(string path);
364
365
366 // private, non-exported helper function for parse_memory_size()
367 int _get_size(string num, number mult);
368
369
370 // private, non-exported constant hashes for scan_exp() below
371 const ParenMap = (")": "(", "}": "{", "]": "[",);
372 const FwdParenMap = map {$1.value: $1.key}, ParenMap.pairIterator();
373
374 // private, non-exported constants for parsing
375 const ET_RawString = 0;
376 const ET_QuotedString = 1;
377 const ET_BracketString = 2;
378 const ET_CurlyBracketString = 3;
379 const ET_Eq = 4;
380 const ET_Comma = 5;
381 const EtMap = {
382 ET_RawString: "raw string",
383 ET_QuotedString: "quoted string",
384 ET_BracketString: "bracket expression",
385 ET_CurlyBracketString: "curly bracket expression",
386 ET_Eq: "=",
387 ET_Comma: ",",
388 };
389 const Suffixes = ("th", "st", "nd", "rd", "th", "th", "th", "th", "th", "th");
390
391 // private scanner for parse_to_qore_value()
392 list<hash> scan_exp(string arg);
393
394
395 // private, non-exported function: tries to evaluate the argument as a Qore expression/value
396 hash<auto> eval_text(string arg, bool err = False);
397
398
399 // private, non-exported function: tries to evaluate the argument as a Qore expression/value
400 /* returns the value parsed
401 */
402 auto parse_to_basic_value(*string arg);
403
404
406
477 auto parse_to_qore_value(string arg);
478
479
481
499 string serialize_to_string(auto val);
500
501
503
511 hash<UriQueryInfo> parse_uri_query(string path);
512
513
515
520 string make_uri_query(hash<UriQueryInfo> h, string arg_separator = ';');
521
522
524
540 string get_random_string(softint len = 15, int level = 3);
541
542
544
548 string get_exception_string(hash<auto> ex);
549
550
552 const StorageNames = ("Kilo", "Mega", "Giga", "Tera", "Peta", "Exa", "Zetta", "Yotta", "Bronto");
553
555 const StorageAbbr = map {$1[0].lwr(): $#}, StorageNames;
556
558
566 string get_byte_size(softnumber n, int decimals = 2);
567
568
570
578 string get_marketing_byte_size(softnumber n, int decimals = 2);
579
580
582
593 bool same(list<auto> l);
594
595
597
607 list<auto> slice(list<auto> l, softlist<auto> indices);
608
609
611
630 string tmp_location();
631
632
634
651 bool is_int(string text, bool pure = False);
652
653
654 const RE_FLOAT = ...;
655
656
658
675 bool is_float(string text, bool pure = False);
676
677
678 const RE_NUMBER = ...;
679
680
682
700 bool is_number(string text, bool pure = False);
701
702
704
719 string lpad(softstring text, int length, string padding = ' ');
720
721
723
738 string rpad(softstring text, int length, string padding = ' ');
739
740
742
753 string ordinal(int i);
754
755
757
776 string plural(int count, string base, string singular = '', string plural = 's');
777
778
780
792 string regex_escape(string text);
793
794
796
808 string glob_to_regex(string pat);
809
810
812
823 list<auto> flatten(softlist<auto> arg);
824
825
827
838 list<int> parse_ranges(string text);
839
840
842
859 list<auto> uniq(softlist<auto> arg);
860
861
863
874 list<auto> zip();
875
876
878
892 bool check_ip_address(string ip, bool exception = False);
893
894
896
901 bool string_starts_with(string str, string substr);
902
903
905
910 bool string_ends_with(string str, string substr);
911
912
914 public hashdecl UrlRetrievalOptions {
916 bool as_binary = False;
917
920
922 *hash<auto> http_headers;
923
926
929 };
930
932
940 data get_file_from_sftp(string url, string path, *hash<UrlRetrievalOptions> options);
941
942
944
952 data get_file_from_ftp(string url, string path, *hash<UrlRetrievalOptions> options);
953
954
956
962 data get_file_from_http(string url, *string path, *hash<UrlRetrievalOptions> options);
963
964
966
971 data get_local_file(string path, *hash<UrlRetrievalOptions> options);
972
973
975
982 data get_file_from_url(string url, *hash<UrlRetrievalOptions> options);
983
984
986
992 string substitute_env_vars(string str);
993
994
996
1002 hash<ExceptionInfo> check_exception_serializable(hash<ExceptionInfo> ex);
1003
1004};
the Util namespace contains all the objects in the Util module
Definition: Util.qm.dox.h:183
string normalize_dir_windows(string path, string cwd=getcwd())
returns a normalized Windows path name (eliminates ".", "..", and "//")
string get_byte_size(softnumber n, int decimals=2)
returns a string giving a user-friendly real storage size (ie based on 1KiB = 1024 bytes) in KiB,...
data get_file_from_http(string url, *string path, *hash< UrlRetrievalOptions > options)
Retrieves file data from an HTTP URL.
hash< ExceptionInfo > check_exception_serializable(hash< ExceptionInfo > ex)
Recursively ensure that exception arguments are serializable.
list< auto > zip()
Returns a list of lists, where the i-th list contains the i-th element from each of the argument list...
data get_file_from_ftp(string url, string path, *hash< UrlRetrievalOptions > options)
Retrieves file data from an FTP URL and a path.
string tmp_location()
Returns a path for temporary files.
list< auto > slice(list< auto > l, softlist< auto > indices)
list slice implementation
string make_uri_query(hash< UriQueryInfo > h, string arg_separator=';')
returns a serialized string for a UriQueryInfo hash
string serialize_to_string(auto val)
Serializes the given value to a string that can be deserialized with parse_to_qore_value()
bool same(list< auto > l)
checks whether given list has only unique elements
data get_local_file(string path, *hash< UrlRetrievalOptions > options)
Retrieves file data from a local file path.
string get_random_string(softint len=15, int level=3)
function that returns a random string
string ordinal(int i)
Returns string with partially textual representation of ordinal integer value.
string normalize_dir_unix(string path, string cwd=getcwd())
returns a normalized UNIX path name (starting from /, eliminates ".", "..", and "//")
string normalize_dir(string path, string cwd=getcwd())
returns a platform-specific normalized path name (starting from /, eliminates ".",...
bool is_number(string text, bool pure=False)
Checks whether string represents a (true) number value.
data get_file_from_sftp(string url, string path, *hash< UrlRetrievalOptions > options)
Retrieves file data from an SFTP URL and a path.
string lpad(softstring text, int length, string padding=' ')
Returns a string left-padded to a specified length with the specified characters.
list< auto > flatten(softlist< auto > arg)
Flattens a nested list (the nesting can be to any depth).
bool is_float(string text, bool pure=False)
Checks whether string represents a (true) float value.
auto parse_to_qore_value(string arg)
tries to convert a string (such as an argument given from the command-line) to a Qore value
bool absolute_path_windows(string path)
returns True if the argument is a Windows absolute path, False if not
string get_marketing_byte_size(softnumber n, int decimals=2)
returns a string giving a user-friendly "marketing storage" size (ie based on 1KB = 1000 bytes) in KB...
hash< UriQueryInfo > parse_uri_query(string path)
parses a URI path for a arguments and a method; where the method is the part of the path before the f...
string glob_to_regex(string pat)
Translates a shell pattern to a regular expression.
string rpad(softstring text, int length, string padding=' ')
Returns a string right-padded to a specified length with the specified characters.
data get_file_from_url(string url, *hash< UrlRetrievalOptions > options)
Retrieves file data from the given URL.
string get_exception_string(hash< auto > ex)
returns a multi-line string from the exception hash argument suitable for logging or output on the co...
string substitute_env_vars(string str)
Substitutes environment variables in a string and returns the string.
bool string_starts_with(string str, string substr)
Verifies whether a string begins with specific substring.
const StorageNames
storage names (Geop, which would normally follow Bronto, is excluded as the abbreviation would be GB/...
Definition: Util.qm.dox.h:552
string regex_escape(string text)
Escapes (backslashes) all non-alphanumeric characters in a string.
list< int > parse_ranges(string text)
Parses a string and returns a list of integers.
int compare_version(string lv, string rv)
compares complex versions by breaking down strings into component parts
string plural(int count, string base, string singular='', string plural='s')
Returns string with number and proper singular/plural form of noun.
bool string_ends_with(string str, string substr)
Verifies whether a string ends with specific substring.
bool absolute_path_unix(string path)
returns True if the argument is a UNIX absolute path, False if not
bool check_ip_address(string ip, bool exception=False)
verifies if a string is an IPv4 or IPv6 address
bool is_int(string text, bool pure=False)
Checks whether string represents a (true) integer value.
int parse_memory_size(string str, *bool use_binary)
Returns a size in bytes from a string where "1M" = 1048576 and so forth.
list< auto > uniq(softlist< auto > arg)
Returns a duplicate-free version of the list.
string get_relative_path(string basedir, string path, string cwd=getcwd())
returns a path as a relative path from another directory
const StorageAbbr
hash of single-letter storage name abbreviations
Definition: Util.qm.dox.h:555
bool absolute_path(string path)
returns True if the argument is an absolute path, False if not
the return value of the parse_uri_query() function
Definition: Util.qm.dox.h:187
*hash< auto > params
(only present if a "?" character is present in the input); the part of the path after the first "?...
Definition: Util.qm.dox.h:192
string method
the part of the URI path before the first "?" character or the entire path if no "?...
Definition: Util.qm.dox.h:189
*hash< auto > path_params
path params; only when matching a request with a REST schema
Definition: Util.qm.dox.h:197
URL retrieval options for get_file_from_url()
Definition: Util.qm.dox.h:914
*string ssh2_private_key
SSH2 private key path.
Definition: Util.qm.dox.h:925
bool as_binary
Return the file data as binary data; if False (the default), a string will be returned.
Definition: Util.qm.dox.h:916
*hash< auto > http_headers
HTTP headers to add to any HTTP GET request.
Definition: Util.qm.dox.h:922
*string default_path
The default path for files with relative paths.
Definition: Util.qm.dox.h:919
*string ssh2_public_key
SSH2 public key path.
Definition: Util.qm.dox.h:928