MATLAB string processing

MATLAB string processing

% string processing
a= ' a '; b= ' b b '; c= ' CCCC '; m= '
%Get string length
Length (a)
% connects two strings, and the rightmost space of each string is trimmed
D=strcat (A,C)
Length (d)
% joins multiple lines of string, each line length can be unequal, automatically the non-longest string the rightmost fill the space
% makes equal to longest string, ignores empty string
E=strvcat (A,B,M)
Size (E)
%char connection, empty string will be filled with spaces
F=char (A,B,M)
Size (f)
%STRCMP compares whether two strings are exactly equal, yes, returns TRUE, otherwise, returns false
%STRNCMP compares two strings before n characters are equal, yes, returns TRUE, otherwise, returns false
%strcmpi compares two strings for exact equality, ignoring the case of letters
%strncmpi compares two strings before n characters are equal, ignoring the case of letters
%isletter to detect if each character in a string is an English letter
%isspace detects whether each character in a string is a format character (space, carriage return, tab, line break, etc.)
%isstrprop detects whether each character of a character falls within a specified range
A= ' d sdsdsd 15# ';
B=isletter (a)
C=isspace (a)
% string substitution and lookup
%strrep string substitution for case-sensitive
% Strrep (STR1,STR2,STR3)
% it replaces all str2 strings in the str1 with STR3.
%strfind (Str,patten) to find if there is a pattern in Str, return to the occurrence position, no return empty array
%findstr (STR1,STR2) finds the position in str1 and str2 where shorter strings appear in longer strings and does not appear to return an empty array
%strmatch (PATTEN,STR) checks if Patten is consistent with the leftmost part of STR
%strtok (Str,char) returns the part and the following part of the string specified by Char in Str.
mm= ' Youqwelcome ';
[Mm1,mm2]=strtok (mm, ' Q ')
% blanks (n) creates a string consisting of n spaces
% Deblank (str) Trimming trailing spaces of a string
% Strtrim (str) cut the beginning and trailing spaces of a string, tab, carriage return
% Lower (str) converts letters in a string to lowercase
% Upper (str) converts letters in a string to uppercase
%sort (str) sorts a string by the ASCII value of the character
%num2str converting a number to a numeric string
%str2num converting a numeric string to a number
%mat2str converting an array into a string
%int2str a character array that converts a numeric array to an integer number

MATLAB string processing