diff options
| author | Robin Haberkorn <rhaberkorn@fmsbw.de> | 2026-10-31 13:46:11 +0100 |
|---|---|---|
| committer | Robin Haberkorn <rhaberkorn@fmsbw.de> | 2026-10-31 21:13:19 +0100 |
| commit | 4aa2b717f9e050783b567540d9bb0193d692e3e9 (patch) | |
| tree | 39b3734c464655e6d1c21390945209a66f952654 /bootstrap.am | |
| parent | e0bf13622b0922252439e3fa8b43df9877678d75 (diff) | |
support floating point numbers
* Extends the SciTECO type system. A number on the expression stack
or in a Q-register can be either an integer or a float.
* Floating point constants begin with a digit (like all other
numbers), are followed by a `.` and an optional fractional part.
Exponents cannot currently be written.
E.g. `1.` == `1.0`. But `.0` would still be `.,0`.
(!) To push an integer followed by dot, you must now write e.g. `1,.` or `1 .`.
* All of the basic arithmetic operators operate like this:
If both operands are integers, the result is also an integer (integer arithmetics).
If at least one of the operands is a float, the result is also a float (float arithmetics).
* All of the binary operators (AND, OR, XOR) always cast all
operands to integer and the result is always an integer as well.
* You can "cast" integers to float by `*1.` or `/1.`.
You can "cast" floats to integers using `#0`.
* Most commands still accept only integers. Floats are implicitly casted to integers.
Float-aware commands are: =, \, ^W, Qq, Uq, %q and the conditionals.
* `%q` will not change the current type of register q.
* Numeric part of "lexer.font" is now a float (in points).
* You cannot currently print octal and hexadecimal floats.
`==` and `===` are identical to `=` on floats.
* `===` is now printing hex integers in lower case.
This is because SciTECO's coding style for hex constants is also lower case.
* `--with-teco-integer` renamed to `--with-teco-number`.
Diffstat (limited to 'bootstrap.am')
| -rw-r--r-- | bootstrap.am | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/bootstrap.am b/bootstrap.am index 872ed70..8bed88f 100644 --- a/bootstrap.am +++ b/bootstrap.am @@ -32,7 +32,7 @@ SUBST_MACRO = <FS@PACKAGE^Q@\e@PACKAGE@\e;>J \ <FS@libexecdir^Q@\e$(libexecdir)\e;>J \ <FS@scitecodatadir^Q@\e$(scitecodatadir)\e;>J \ <FS@scitecolibdir^Q@\e$(scitecolibdir)\e;>J \ - <FS@TECO_INTEGER^Q@\e@TECO_INTEGER@\e;>J \ + <FS@TECO_NUMBER^Q@\e@TECO_NUMBER@\e;>J \ <FS@DATE^Q@\e$(shell LC_ALL=C @DATE@ "+%d %b %Y")\e;>J # The SciTECO-based substitutor must not process config.h.in. |