 Scilab Help
 Strings
 ascii
 asciimat
 blanks
 char
 convstr
 emptystr
 eval
 evstr
 grep
 isalphanum
 isascii
 isdigit
 isletter
 isnum
 justify
 length
 part
 prettyprint
 regexp
 sci2exp
 strcat
 strchr
 strcmp
 strcmpi
 strcspn
 strindex
 string
 strings
 stripblanks
 strncpy
 strrchr
 strrev
 strsplit
 strspn
 strstr
 strsubst
 strtod
 strtok
 tokenpos
 tokens
evstr
evaluates Scilab expressions and concatenates their results
Syntax
H = evstr(M) H = evstr(list(M, subExpr)) [H, ierr] = evstr(..)
Arguments
 M
single or vector or matrix of character strings: Scilab expressions to be evaluated and results to be concatenated.
 subExpr
vector of character strings: subexpressions to be preevaluated, defining quantities used in
M
expressions. H
single element, vector, or matrix of concatenated results.
 ierr
an integer, error indicator.
Description
Evaluates expressions set in M
. Then, concatenates their results
to build H
.
All expressions are assumed to yield results of compatible types and sizes with respect to their concatenation.
If the evaluation of M
expressions or the concatenation of their
results leads to an error, H = evstr(M)
yields the error as usual.
To avoid stopping to run next Scilab instructions,
[H, ierr] = evstr(M)
can be used to catch the error.
H
is then set to []
and ierr
returns 999
or another nonnull positive code.
If M
is provided through a list, Scilab expressions set in
subExpr
are evaluated before evaluating M
.
The results of these subexpressions must be referred to as %(k)
in M
, where k
is the subexpression's index in
subExpr
.

Special aliases:

Examples
a = 1; b = 2; Z = ['a', 'b'] ; evstr(Z) Z = list(['%(1)','%(1)%(2)'],['a+1','b+1']); evstr(Z) evstr('NaN'), evstr('Inf') //The two return values version [H, ierr] = evstr(Z) // no error Z = ['a', 'b', 'c'] ;// the variable c is undefined [H, ierr] = evstr(Z) // error 4: Undefined variable: c
See also
 execstr — execute Scilab code in strings
 sci2exp — returns a string able to generate a given Scilab object
 strtod — parse and convert literal numbers STRings TO Decimal numbers
 concatenation — Concatenation. Recipients of an assignment. Results of a function
History
Version  Description 
5.3.0  "Nan" and "NaN" are now parsed as %nan .
"Inf" and "INF" are now parsed as %inf . 
6.0.1  Simple comments are now supported in almost all possible input expressions,
whatever is the shape of M . 
Comments
Add a comment:
Please login to comment this page.